diff --git a/ferns/SeTTiNGS.txt b/ferns/SeTTiNGS.txt
deleted file mode 100644
index e34d2ba..0000000
--- a/ferns/SeTTiNGS.txt
+++ /dev/null
@@ -1,42 +0,0 @@
--- In case you don't wanna have errors:
-
--- Only change what's behind a "=" (or "--"). 
--- Don't use caps (behind a "=").
-
--- If there's a "false" (behind a "=") you can change it to "true" (and the other way around).
--- Spelling is important.
--- If "true" or "false" is necessary as setting, everything(!) which is not spelled "true" will be read as if it were "false" (even "1", "True"...)
-
--- If you wanna comment something (for example to remember the default value), you can do this by putting "--" in front of the comment.
--- You can put "--" at the end of a line with "=" in it, or at the beginning of an empty/new line (minetest will ignore what's behind it then).
--- But don't put "--" in front of a line with "=" in it (or else minetest will ignore the setting and you might get an error).
-
--- If something is still unclear, don't hesitate to post your question @ https://forum.minetest.net/viewtopic.php?id=6921
-
-
--- Which plants should generate/spawn?
-Lady_fern		= true
-Horsetails 		= true
-Tree_Fern 		= true
-Giant_Tree_Fern = true
-
--- Where should they generate/spawn? (if they generate/spawn)
---
---  Lady-Fern
-Ferns_near_Tree = true				
-Ferns_near_Rock = true				
-Ferns_near_Ores = true				-- if there's a bunch of ferns there's ores nearby, this one causes a huge fps drop
-Ferns_in_Groups = false				-- this one is meant as a replacement of Ferns_near_Ores: ferns tend to generate in groups, less fps drop, no hint for nearby ores
---
---	Horsetails
-Horsetails_Spawning = false			-- horsetails will grow in already explored areas, over time, near water or gravel
-Horsetails_on_Grass = true			-- on dirt with grass and swamp (sumpf mod)
-Horsetails_on_Stony = true			-- on gravel, mossy cobble and silex (stoneage mod)
---
--- Tree_Fern
-Tree_Ferns_in_Jungle = true			
-Tree_Ferns_for_Oases = true			-- for oases and tropical beaches
---
--- Giant_Tree_Fern
-Giant_Tree_Ferns_in_Jungle = true	
-Giant_Tree_Ferns_for_Oases = true	-- for oases and tropical beaches
diff --git a/ferns/fern.lua b/ferns/fern.lua
index ef7e5b2..7a090b2 100644
--- a/ferns/fern.lua
+++ b/ferns/fern.lua
@@ -101,149 +101,126 @@ minetest.register_node("ferns:fern_01", {
 -----------------------------------------------------------------------------------------------
 -- Spawning
 -----------------------------------------------------------------------------------------------
---[[plantslib:spawn_on_surfaces({
-	spawn_delay = 1200,
-	spawn_plants = {"ferns:fern"},
-	spawn_chance = 800,
-	spawn_surfaces = {
-		"default:dirt_with_grass", 
-		"default:mossycobble", 
-		"dryplants:grass_short", 
-		"default:jungletree",
-		"stoneage:grass_with_silex"
+
+assert(abstract_ferns.config.Lady_fern == true)
+
+if abstract_ferns.config.Ferns_near_Tree == true then
+	plantslib:register_generate_plant({ -- near trees (woodlands)
+		surface = {
+			"default:dirt_with_grass",
+			"default:mossycobble",
+			"default:desert_sand",
+			"default:sand",
+			"default:jungletree",
+			"stoneage:grass_with_silex",
+			"sumpf:sumpf"
+		},
+		max_count = 30,
+		rarity = 62,--63,
+		min_elevation = 1, -- above sea level
+		near_nodes = {"group:tree"},
+		near_nodes_size = 3,--4,
+		near_nodes_vertical = 2,--3,
+		near_nodes_count = 1,
+		plantlife_limit = -0.9,
+		humidity_max = -1.0,
+		humidity_min = 0.4,
+		temp_max = -0.5, -- 55 °C (too hot?)
+		temp_min = 0.75, -- -12 °C
 	},
-	seed_diff = 329,
-})
-plantslib:spawn_on_surfaces({
-	spawn_delay = 1200,
-	spawn_plants = {"ferns:fern_mid"},
-	spawn_chance = 400,
-	spawn_surfaces = {
-		"default:dirt_with_grass", 
-		"default:mossycobble", 
-		"dryplants:grass_short", 
-		"default:jungletree",
-		"stoneage:grass_with_silex"
-	},
-	seed_diff = 329,
-})]]
-if Ferns_near_Tree == true then
-plantslib:register_generate_plant({ -- near trees (woodlands)
-    surface = {
-		"default:dirt_with_grass", 
-		"default:mossycobble", 
-		"default:desert_sand",
-		"default:sand",
-		"default:jungletree",
-		"stoneage:grass_with_silex",
-		"sumpf:sumpf"
-	},
-    max_count = 30,
-    rarity = 62,--63,
-    min_elevation = 1, -- above sea level
-	near_nodes = {"group:tree"},
-	near_nodes_size = 3,--4,
-	near_nodes_vertical = 2,--3,
-	near_nodes_count = 1,
-    plantlife_limit = -0.9,
-    humidity_max = -1.0,
-    humidity_min = 0.4,
-    temp_max = -0.5, -- 55 °C (too hot?)
-    temp_min = 0.75, -- -12 °C
-  },
-  abstract_ferns.grow_fern
-)
+	abstract_ferns.grow_fern
+	)
 end
 
-if Ferns_near_Rock == true then
-plantslib:register_generate_plant({ -- near stone (mountains)
-    surface = {
-		"default:dirt_with_grass", 
-		"default:mossycobble", 
-		"group:falling_node", 
-		--"default:jungletree",
-		"stoneage:grass_with_silex",
-		"sumpf:sumpf"
+if abstract_ferns.config.Ferns_near_Rock == true then
+	plantslib:register_generate_plant({ -- near stone (mountains)
+		surface = {
+			"default:dirt_with_grass",
+			"default:mossycobble",
+			"group:falling_node",
+			--"default:jungletree",
+			"stoneage:grass_with_silex",
+			"sumpf:sumpf"
+		},
+		max_count = 35,
+		rarity = 40,
+		min_elevation = 1, -- above sea level
+		near_nodes = {"group:stone"},
+		near_nodes_size = 1,
+		near_nodes_count = 16,
+		plantlife_limit = -0.9,
+		humidity_max = -1.0,
+		humidity_min = 0.4,
+		temp_max = -0.5, -- 55 °C (too hot?)
+		temp_min = 0.75, -- -12 °C
 	},
-    max_count = 35,
-    rarity = 40,
-    min_elevation = 1, -- above sea level
-	near_nodes = {"group:stone"},
-	near_nodes_size = 1,
-	near_nodes_count = 16,
-    plantlife_limit = -0.9,
-    humidity_max = -1.0,
-    humidity_min = 0.4,
-    temp_max = -0.5, -- 55 °C (too hot?)
-    temp_min = 0.75, -- -12 °C
-  },
-  abstract_ferns.grow_fern
-)
+	abstract_ferns.grow_fern
+	)
 end
 
-if Ferns_near_Ores == true then -- this one causes a huge fps drop
-plantslib:register_generate_plant({ -- near ores (potential mining sites)
-    surface = {
-		"default:dirt_with_grass", 
-		"default:mossycobble",
-		"default:stone_with_coal",
-		"default:stone_with_iron",
-		"moreores:mineral_tin",
-		"moreores:mineral_silver",
-		"sumpf:sumpf"
+if abstract_ferns.config.Ferns_near_Ores == true then -- this one causes a huge fps drop
+	plantslib:register_generate_plant({ -- near ores (potential mining sites)
+		surface = {
+			"default:dirt_with_grass",
+			"default:mossycobble",
+			"default:stone_with_coal",
+			"default:stone_with_iron",
+			"moreores:mineral_tin",
+			"moreores:mineral_silver",
+			"sumpf:sumpf"
+		},
+		max_count = 1200,--1600, -- maybe too much? :D
+		rarity = 25,--15,
+		min_elevation = 1, -- above sea level
+		near_nodes = {
+			"default:stone_with_iron",
+			--"default:stone_with_copper",
+			--"default:stone_with_mese",
+			--"default:stone_with_gold",
+			--"default:stone_with_diamond",
+			"moreores:mineral_tin",
+			"moreores:mineral_silver"
+			--"moreores:mineral_mithril"
+		},
+		near_nodes_size = 2,
+		near_nodes_vertical = 4,--5,--6,
+		near_nodes_count = 2,--3,
+		plantlife_limit = -0.9,
+		humidity_max = -1.0,
+		humidity_min = 0.4,
+		temp_max = -0.5, -- 55 °C (too hot?)
+		temp_min = 0.75, -- -12 °C
 	},
-    max_count = 1200,--1600, -- maybe too much? :D
-    rarity = 25,--15,
-    min_elevation = 1, -- above sea level
-	near_nodes = {
-		"default:stone_with_iron",
-		--"default:stone_with_copper",
-		--"default:stone_with_mese",
-		--"default:stone_with_gold",
-		--"default:stone_with_diamond",
-		"moreores:mineral_tin",
-		"moreores:mineral_silver"
-		--"moreores:mineral_mithril"
-	},
-	near_nodes_size = 2,
-	near_nodes_vertical = 4,--5,--6,
-	near_nodes_count = 2,--3,
-    plantlife_limit = -0.9,
-    humidity_max = -1.0,
-    humidity_min = 0.4,
-    temp_max = -0.5, -- 55 °C (too hot?)
-    temp_min = 0.75, -- -12 °C
-  },
-  abstract_ferns.grow_fern
-)
+	abstract_ferns.grow_fern
+	)
 end
 
-if Ferns_in_Groups == true then -- this one is meant as a replacement of Ferns_near_Ores
-plantslib:register_generate_plant({
-    surface = {
-		"default:dirt_with_grass", 
-		"default:mossycobble",
-		"default:stone_with_coal",
-		"default:stone_with_iron",
-		"moreores:mineral_tin",
-		"moreores:mineral_silver",
-		"sumpf:sumpf"
+if abstract_ferns.config.Ferns_in_Groups == true then -- this one is meant as a replacement of Ferns_near_Ores
+	plantslib:register_generate_plant({
+		surface = {
+			"default:dirt_with_grass",
+			"default:mossycobble",
+			"default:stone_with_coal",
+			"default:stone_with_iron",
+			"moreores:mineral_tin",
+			"moreores:mineral_silver",
+			"sumpf:sumpf"
+		},
+		max_count = 70,
+		rarity = 25,--15,
+		min_elevation = 1, -- above sea level
+		near_nodes = {
+			"default:stone"
+		},
+		near_nodes_size = 2,
+		near_nodes_vertical = 2,--6,
+		near_nodes_count = 3,
+		plantlife_limit = -0.9,
+		humidity_max = -1.0,
+		humidity_min = 0.4,
+		temp_max = -0.5, -- 55 °C (too hot?)
+		temp_min = 0.75, -- -12 °C
 	},
-    max_count = 70,
-    rarity = 25,--15,
-    min_elevation = 1, -- above sea level
-	near_nodes = {
-		"default:stone"
-	},
-	near_nodes_size = 2,
-	near_nodes_vertical = 2,--6,
-	near_nodes_count = 3,
-    plantlife_limit = -0.9,
-    humidity_max = -1.0,
-    humidity_min = 0.4,
-    temp_max = -0.5, -- 55 °C (too hot?)
-    temp_min = 0.75, -- -12 °C
-  },
-  abstract_ferns.grow_fern
-)
+	abstract_ferns.grow_fern
+	)
 end
diff --git a/ferns/gianttreefern.lua b/ferns/gianttreefern.lua
index 689bcac..9674db2 100644
--- a/ferns/gianttreefern.lua
+++ b/ferns/gianttreefern.lua
@@ -11,114 +11,81 @@
 -- lot of code, lot to load
 
 abstract_ferns.grow_giant_tree_fern = function(pos)
-	local size = math.random(12,16)	-- min of range must be >= 4
 	local pos_01 = {x = pos.x, y = pos.y + 1, z = pos.z}
-	
-	local leave_a_1 = {x = pos.x + 1, y = pos.y + size - 1, z = pos.z    }
-	local leave_a_2 = {x = pos.x + 2, y = pos.y + size    , z = pos.z    }
-	local leave_a_3 = {x = pos.x + 3, y = pos.y + size - 1, z = pos.z    }
-	local leave_a_4 = {x = pos.x + 4, y = pos.y + size - 2, z = pos.z    }
-	
-	local leave_b_1 = {x = pos.x - 1, y = pos.y + size - 1, z = pos.z    }
-	local leave_b_2 = {x = pos.x - 2, y = pos.y + size,     z = pos.z    }
-	local leave_b_3 = {x = pos.x - 3, y = pos.y + size - 1, z = pos.z    }
-	local leave_b_4 = {x = pos.x - 4, y = pos.y + size - 2, z = pos.z    }
-	
-	local leave_c_1 = {x = pos.x    , y = pos.y + size - 1, z = pos.z + 1}
-	local leave_c_2 = {x = pos.x    , y = pos.y + size    , z = pos.z + 2}
-	local leave_c_3 = {x = pos.x    , y = pos.y + size - 1, z = pos.z + 3}
-	local leave_c_4 = {x = pos.x    , y = pos.y + size - 2, z = pos.z + 4}
-	
-	local leave_d_1 = {x = pos.x    , y = pos.y + size - 1, z = pos.z - 1}
-	local leave_d_2 = {x = pos.x    , y = pos.y + size    , z = pos.z - 2}
-	local leave_d_3 = {x = pos.x    , y = pos.y + size - 1, z = pos.z - 3}
-	local leave_d_4 = {x = pos.x    , y = pos.y + size - 2, z = pos.z - 4}
-	
-	if minetest.get_node(pos_01).name == "air"  -- instead of check_air = true,
-	or minetest.get_node(pos_01).name == "ferns:sapling_giant_tree_fern"
-	or minetest.get_node(pos_01).name == "default:junglegrass" then
-		
-		for i = 1, size-3 do
-			minetest.set_node({x = pos.x, y = pos.y + i, z = pos.z}, {name="ferns:fern_trunk_big"})
-		end
-		minetest.set_node({x = pos.x, y = pos.y + size-2, z = pos.z}, {name="ferns:fern_trunk_big_top"})
-		minetest.set_node({x = pos.x, y = pos.y + size-1, z = pos.z}, {name="ferns:tree_fern_leaves_giant"})
+	if minetest.get_node(pos_01).name ~= "air"
+			and minetest.get_node(pos_01).name ~= "ferns:sapling_giant_tree_fern"
+			and minetest.get_node(pos_01).name ~= "default:junglegrass" then
+		return
+	end
 
-		-- all the checking for air below is to prevent some ugly bugs (incomplete trunks of neighbouring trees), it's a bit slower, but worth the result
-		
-		if minetest.get_node(leave_a_1).name == "air" then	
-			minetest.set_node(leave_a_1, {name="ferns:tree_fern_leave_big"})
-			if minetest.get_node(leave_a_2).name == "air" then
-				minetest.set_node(leave_a_2, {name="ferns:tree_fern_leave_big"})
-				if minetest.get_node(leave_a_3).name == "air" then
-					minetest.set_node(leave_a_3, {name="ferns:tree_fern_leave_big"})
-					if minetest.get_node(leave_a_4).name == "air" then
-						minetest.set_node(leave_a_4, {name="ferns:tree_fern_leave_big_end", param2=3})
-					end
-				end
-			end
-		end
-		
-		if minetest.get_node(leave_b_1).name == "air" then
-			minetest.set_node(leave_b_1, {name="ferns:tree_fern_leave_big"})
-			if minetest.get_node(leave_b_2).name == "air" then
-				minetest.set_node(leave_b_2, {name="ferns:tree_fern_leave_big"})
-				if minetest.get_node(leave_b_3).name == "air" then
-					minetest.set_node(leave_b_3, {name="ferns:tree_fern_leave_big"})
-					if minetest.get_node(leave_b_4).name == "air" then
-						minetest.set_node(leave_b_4, {name="ferns:tree_fern_leave_big_end", param2=1})
-					end
-				end
-			end
-		end
-		
-		if minetest.get_node(leave_c_1).name == "air" then
-			minetest.set_node(leave_c_1, {name="ferns:tree_fern_leave_big"})
-			if minetest.get_node(leave_c_2).name == "air" then
-				minetest.set_node(leave_c_2, {name="ferns:tree_fern_leave_big"})
-				if minetest.get_node(leave_c_3).name == "air" then
-					minetest.set_node(leave_c_3, {name="ferns:tree_fern_leave_big"})
-					if minetest.get_node(leave_c_4).name == "air" then
-						minetest.set_node(leave_c_4, {name="ferns:tree_fern_leave_big_end", param2=2})
-					end
-				end
-			end
-		end
-			
-		if minetest.get_node(leave_d_1).name == "air" then
-			minetest.set_node(leave_d_1, {name="ferns:tree_fern_leave_big"})
-			if minetest.get_node(leave_d_2).name == "air" then
-				minetest.set_node(leave_d_2, {name="ferns:tree_fern_leave_big"})
-				if minetest.get_node(leave_d_3).name == "air" then
-					minetest.set_node(leave_d_3, {name="ferns:tree_fern_leave_big"})
-					if minetest.get_node(leave_d_4).name == "air" then
-						minetest.set_node(leave_d_4, {name="ferns:tree_fern_leave_big_end", param2=0})
-					end
-				end
-			end
-		end
+	local size = math.random(12,16)	-- min of range must be >= 4
+	
+	local leafchecks = {
+		{
+			direction  = 3,
+			positions = {
+				{x = pos.x + 1, y = pos.y + size - 1, z = pos.z    },
+				{x = pos.x + 2, y = pos.y + size    , z = pos.z    },
+				{x = pos.x + 3, y = pos.y + size - 1, z = pos.z    },
+				{x = pos.x + 4, y = pos.y + size - 2, z = pos.z    }
+			}
+		},
+		{
+			direction  = 1,
+			positions = {
+				{x = pos.x - 1, y = pos.y + size - 1, z = pos.z    },
+				{x = pos.x - 2, y = pos.y + size,     z = pos.z    },
+				{x = pos.x - 3, y = pos.y + size - 1, z = pos.z    },
+				{x = pos.x - 4, y = pos.y + size - 2, z = pos.z    }
+			}
+		},
+		{
+			direction  = 2,
+			positions = {
+				{x = pos.x    , y = pos.y + size - 1, z = pos.z + 1},
+				{x = pos.x    , y = pos.y + size    , z = pos.z + 2},
+				{x = pos.x    , y = pos.y + size - 1, z = pos.z + 3},
+				{x = pos.x    , y = pos.y + size - 2, z = pos.z + 4}
+			}
+		},
+		{
+			direction  = 0,
+			positions = {
+				{x = pos.x    , y = pos.y + size - 1, z = pos.z - 1},
+				{x = pos.x    , y = pos.y + size    , z = pos.z - 2},
+				{x = pos.x    , y = pos.y + size - 1, z = pos.z - 3},
+				{x = pos.x    , y = pos.y + size - 2, z = pos.z - 4}
+			}
+		}
+	}
 
-		-- bug fixes # 2 - doesn't really work, so disabled for now
-		--[[if minetest.get_node(leave_a_4).name == "ferns:tree_fern_leave_big_end"
-		and minetest.get_node(leave_a_3).name == "ferns:fern_trunk_big" then
-			minetest.set_node(leave_a_4, {name="air"})
+	for i = 1, size-3 do
+		minetest.set_node({x = pos.x, y = pos.y + i, z = pos.z}, {name="ferns:fern_trunk_big"})
+	end
+	minetest.set_node({x = pos.x, y = pos.y + size-2, z = pos.z}, {name="ferns:fern_trunk_big_top"})
+	minetest.set_node({x = pos.x, y = pos.y + size-1, z = pos.z}, {name="ferns:tree_fern_leaves_giant"})
+
+	-- all the checking for air below is to prevent some ugly bugs (incomplete trunks of neighbouring trees), it's a bit slower, but worth the result
+
+	-- assert(#leafchecks == 4)
+	for i = 1, 4 do
+		local positions = leafchecks[i].positions
+		local rot = leafchecks[i].direction
+		local endpos = 4	-- If the loop below adds all intermediate leaves then the "terminating" leaf will be at positions[4]
+		-- assert(#positions == 4)
+		-- add leaves so long as the destination nodes are air
+		for j = 1, 3 do
+			if minetest.get_node(positions[j]).name == "air" then
+				minetest.set_node(positions[j], {name="ferns:tree_fern_leave_big"})
+			else
+				endpos = j
+				break
+			end
 		end
-		
-		if minetest.get_node(leave_b_4).name == "ferns:tree_fern_leave_big_end"
-		and minetest.get_node(leave_b_3).name == "ferns:fern_trunk_big" then
-			minetest.set_node(leave_b_4, {name="air"})
+		-- add the terminating leaf if required and possible
+		if endpos == 4 and minetest.get_node(positions[endpos]).name == "air" then
+			minetest.set_node(positions[endpos], {name="ferns:tree_fern_leave_big_end", param2=rot})
 		end
-		
-		if minetest.get_node(leave_c_4).name == "ferns:tree_fern_leave_big_end"
-		and minetest.get_node(leave_c_3).name == "ferns:fern_trunk_big" then
-			minetest.set_node(leave_c_4, {name="air"})
-		end
-		
-		if minetest.get_node(leave_d_4).name == "ferns:tree_fern_leave_big_end"
-		and minetest.get_node(leave_d_3).name == "ferns:fern_trunk_big" then
-			minetest.set_node(leave_d_4, {name="air"})
-		end]]
-		
 	end
 end
 
@@ -131,8 +98,6 @@ minetest.register_node("ferns:tree_fern_leaves_giant", {
 	visual_scale = math.sqrt(8),
 	wield_scale = {x=0.175, y=0.175, z=0.175},
 	paramtype = "light",
-	--paramtype2 = "facedir",
-	--tiles = {"[combine:"..TSS..T1.."ferns_5.png"..T2.."ferns_6.png"..T3.."ferns_7.png"..T4.."ferns_8.png^[transformFX^[combine:"..TSS..T1.."ferns_5.png"..T2.."ferns_6.png"..T3.."ferns_7.png"..T4.."ferns_8.png"},
 	tiles = {"ferns_fern_tree_giant.png"},
 	inventory_image = "ferns_fern_tree.png",
 	walkable = false,
@@ -309,58 +274,57 @@ minetest.register_abm({
 -----------------------------------------------------------------------------------------------
 -- GENERATE GIANT TREE FERN
 -----------------------------------------------------------------------------------------------
+
+assert(abstract_ferns.config.Giant_Tree_Fern == true)
+
 -- in jungles
-if Giant_Tree_Ferns_in_Jungle == true then
-plantslib:register_generate_plant({
-    surface = {
-		"default:dirt_with_grass", 
-		"default:sand", 
-		"default:desert_sand"--, 
-		--"dryplants:grass_short"
+if abstract_ferns.config.Giant_Tree_Ferns_in_Jungle == true then
+	plantslib:register_generate_plant({
+		surface = {
+			"default:dirt_with_grass",
+			"default:sand",
+			"default:desert_sand"--,
+			--"dryplants:grass_short"
+		},
+		max_count = 12,--27,
+		avoid_nodes = {"group:tree"},
+		avoid_radius = 3,--4,
+		rarity = 85,
+		seed_diff = 329,
+		min_elevation = 1,
+		near_nodes = {"default:jungletree"},
+		near_nodes_size = 6,
+		near_nodes_vertical = 2,--4,
+		near_nodes_count = 1,
+		plantlife_limit = -0.9,
 	},
-    max_count = 12,--27,
-    avoid_nodes = {"group:tree"},
-    avoid_radius = 3,--4,
-    rarity = 85,
-    seed_diff = 329,
-    min_elevation = 1,
-	near_nodes = {"default:jungletree"},
-	near_nodes_size = 6,
-	near_nodes_vertical = 2,--4,
-	near_nodes_count = 1,
-    plantlife_limit = -0.9,
-    --humidity_max = 0.39,--1.0,
-    --humidity_min = 0.5,
-    --temp_max = -1,-- -1.2,-- -0.5, -- ~ 55C
-    --temp_min = -0.35,-- -0.07, -- ~ 25C
-  },
-  abstract_ferns.grow_giant_tree_fern
-)
+	abstract_ferns.grow_giant_tree_fern
+	)
 end
 
 -- for oases & tropical beaches
-if Giant_Tree_Ferns_for_Oases == true then
-plantslib:register_generate_plant({
-    surface = {
-		"default:sand"--,
-		--"default:desert_sand"
+if abstract_ferns.config.Giant_Tree_Ferns_for_Oases == true then
+	plantslib:register_generate_plant({
+		surface = {
+			"default:sand"--,
+			--"default:desert_sand"
+		},
+		max_count = 10,--27,
+		rarity = 90,
+		seed_diff = 329,
+		neighbors = {"default:desert_sand"},
+		ncount = 1,
+		min_elevation = 1,
+		near_nodes = {"default:water_source"},
+		near_nodes_size = 2,
+		near_nodes_vertical = 1,
+		near_nodes_count = 1,
+		plantlife_limit = -0.9,
+		humidity_max = -1.0,
+		humidity_min = 1.0,
+		temp_max = -1.0,
+		temp_min = 1.0,
 	},
-    max_count = 10,--27,
-    rarity = 90,
-    seed_diff = 329,
-	neighbors = {"default:desert_sand"},
-	ncount = 1,
-    min_elevation = 1,
-	near_nodes = {"default:water_source"},
-	near_nodes_size = 2,
-	near_nodes_vertical = 1,
-	near_nodes_count = 1,
-    plantlife_limit = -0.9,
-    humidity_max = -1.0,
-    humidity_min = 1.0,
-    temp_max = -1.0,
-    temp_min = 1.0,
-  },
-  abstract_ferns.grow_giant_tree_fern
-)
+	abstract_ferns.grow_giant_tree_fern
+	)
 end
diff --git a/ferns/horsetail.lua b/ferns/horsetail.lua
index bfab07e..7b480b0 100644
--- a/ferns/horsetail.lua
+++ b/ferns/horsetail.lua
@@ -94,85 +94,88 @@ minetest.register_node("ferns:horsetail_04", { -- the one in inventory
 -----------------------------------------------------------------------------------------------
 -- Spawning
 -----------------------------------------------------------------------------------------------
-if Horsetails_Spawning == true then
-plantslib:spawn_on_surfaces({
-	spawn_delay = 1200,
-	spawn_plants = {
-		"ferns:horsetail_01", 
-		"ferns:horsetail_02", 
-		"ferns:horsetail_03", 
-		"ferns:horsetail_04"
-	},
-	spawn_chance = 400,
-	spawn_surfaces = {
-		"default:dirt_with_grass",
-		"default:desert_sand",
-		"default:sand",
-		"dryplants:grass_short",
-		"stoneage:grass_with_silex",
-		"default:mossycobble",
-		"default:gravel"
-	},
-	seed_diff = 329,
-	min_elevation = 1, -- above sea level
-	near_nodes = {"default:water_source","default:gravel"},
-	near_nodes_size = 2,
-	near_nodes_vertical = 1,
-	near_nodes_count = 1,
-})
+if abstract_ferns.config.Horsetails_Spawning == true then
+	plantslib:spawn_on_surfaces({
+		spawn_delay = 1200,
+		spawn_plants = {
+			"ferns:horsetail_01",
+			"ferns:horsetail_02",
+			"ferns:horsetail_03",
+			"ferns:horsetail_04"
+		},
+		spawn_chance = 400,
+		spawn_surfaces = {
+			"default:dirt_with_grass",
+			"default:desert_sand",
+			"default:sand",
+			"dryplants:grass_short",
+			"stoneage:grass_with_silex",
+			"default:mossycobble",
+			"default:gravel"
+		},
+		seed_diff = 329,
+		min_elevation = 1, -- above sea level
+		near_nodes = {"default:water_source","default:gravel"},
+		near_nodes_size = 2,
+		near_nodes_vertical = 1,
+		near_nodes_count = 1,
+	})
 end
 -----------------------------------------------------------------------------------------------
 -- Generating
 -----------------------------------------------------------------------------------------------
-if Horsetails_on_Grass == true then
-plantslib:register_generate_plant({
-    surface = {
-		"default:dirt_with_grass",
-		"sumpf:sumpf"
+
+assert(abstract_ferns.config.Horsetails == true)
+
+if abstract_ferns.config.Horsetails_on_Grass == true then
+	plantslib:register_generate_plant({
+		surface = {
+			"default:dirt_with_grass",
+			"sumpf:sumpf"
+		},
+		max_count = 35,
+		rarity = 40,
+		min_elevation = 1, -- above sea level
+		near_nodes = {
+			"group:water", -- likes water (of course)
+			"default:gravel", -- near those on gravel
+			"default:sand", -- some like sand
+			"default:clay", -- some like clay
+			"stoneage:grass_with_silex",
+			"default:mossycobble",
+			"default:cobble",
+			"sumpf:sumpf"
+		},
+		near_nodes_size = 3,
+		near_nodes_vertical = 2,--3,
+		near_nodes_count = 1,
+		plantlife_limit = -0.9,
+		humidity_min = 0.4,
+		temp_max = -0.5, -- 55 °C
+		temp_min = 0.53, -- 0 °C, dies back in winter
 	},
-    max_count = 35,
-    rarity = 40,
-    min_elevation = 1, -- above sea level
-	near_nodes = {
-		"group:water", -- likes water (of course)
-		"default:gravel", -- near those on gravel
-		"default:sand", -- some like sand
-		"default:clay", -- some like clay
-		"stoneage:grass_with_silex",
-		"default:mossycobble",
-		"default:cobble",
-		"sumpf:sumpf"
-	},
-	near_nodes_size = 3,
-	near_nodes_vertical = 2,--3,
-	near_nodes_count = 1,
-    plantlife_limit = -0.9,
-    humidity_min = 0.4,
-    temp_max = -0.5, -- 55 °C
-    temp_min = 0.53, -- 0 °C, dies back in winter
-  },
-  abstract_ferns.grow_horsetail
-)
+	abstract_ferns.grow_horsetail
+	)
 end
 
-if Horsetails_on_Stony == true then
-plantslib:register_generate_plant({
-    surface = {
-		"default:gravel", -- roots go deep
-		"default:mossycobble",
-		"stoneage:dirt_with_silex",
-		"stoneage:grass_with_silex",
-		"stoneage:sand_with_silex"--, -- roots go deep
-		--"sumpf:sumpf"
+if abstract_ferns.config.Horsetails_on_Stony == true then
+	plantslib:register_generate_plant({
+		surface = {
+			"default:gravel", -- roots go deep
+			"default:mossycobble",
+			"stoneage:dirt_with_silex",
+			"stoneage:grass_with_silex",
+			"stoneage:sand_with_silex"--, -- roots go deep
+			--"sumpf:sumpf"
+		},
+		max_count = 35,
+		rarity = 20,
+		min_elevation = 1, -- above sea level
+		plantlife_limit = -0.9,
+		humidity_min = 0.4,
+		temp_max = -0.5, -- 55 °C
+		temp_min = 0.53, -- 0 °C, dies back in winter
 	},
-    max_count = 35,
-    rarity = 20,
-    min_elevation = 1, -- above sea level
-	plantlife_limit = -0.9,
-    humidity_min = 0.4,
-    temp_max = -0.5, -- 55 °C
-    temp_min = 0.53, -- 0 °C, dies back in winter
-  },
-  abstract_ferns.grow_horsetail
-)
+	abstract_ferns.grow_horsetail
+	)
 end
diff --git a/ferns/init.lua b/ferns/init.lua
index 2d389ce..1614223 100644
--- a/ferns/init.lua
+++ b/ferns/init.lua
@@ -1,6 +1,6 @@
 -----------------------------------------------------------------------------------------------
 local title		= "Ferns" -- former "Archae Plantae"
-local version 	= "0.1.2"
+local version 	= "0.2.0"
 local mname		= "ferns" -- former "archaeplantae"
 -----------------------------------------------------------------------------------------------
 -- (by Mossmanikin)
@@ -8,21 +8,21 @@ local mname		= "ferns" -- former "archaeplantae"
 -----------------------------------------------------------------------------------------------
 abstract_ferns = {}
 
-dofile(minetest.get_modpath("ferns").."/SeTTiNGS.txt")
+dofile(minetest.get_modpath("ferns").."/settings.lua")
 
-if Lady_fern == true then
-dofile(minetest.get_modpath("ferns").."/fern.lua")
+if abstract_ferns.config.Lady_fern == true then
+	dofile(minetest.get_modpath("ferns").."/fern.lua")
 end
 
-if Horsetails == true then
+if abstract_ferns.config.Horsetails == true then
 	dofile(minetest.get_modpath("ferns").."/horsetail.lua")
 end
 
-if Tree_Fern == true then
+if abstract_ferns.config.Tree_Fern == true then
 	dofile(minetest.get_modpath("ferns").."/treefern.lua")
 end
 
-if Giant_Tree_Fern == true then
+if abstract_ferns.config.Giant_Tree_Fern == true then
 	dofile(minetest.get_modpath("ferns").."/gianttreefern.lua")
 end
 
@@ -30,4 +30,4 @@ dofile(minetest.get_modpath("ferns").."/crafting.lua")
 
 -----------------------------------------------------------------------------------------------
 print("[Mod] "..title.." ["..version.."] ["..mname.."] Loaded...")
------------------------------------------------------------------------------------------------
\ No newline at end of file
+-----------------------------------------------------------------------------------------------
diff --git a/ferns/settings.lua b/ferns/settings.lua
new file mode 100644
index 0000000..ce9cbc7
--- /dev/null
+++ b/ferns/settings.lua
@@ -0,0 +1,43 @@
+-- In case you don't wanna have errors:
+
+-- Only change what's behind a "=" (or "--"). 
+-- Don't use caps (behind a "=").
+
+-- If there's a "false" (behind a "=") you can change it to "true" (and the other way around).
+-- Spelling is important.
+-- If "true" or "false" is necessary as setting, everything(!) which is not spelled "true" will be read as if it were "false" (even "1", "True"...)
+
+-- If you wanna comment something (for example to remember the default value), you can do this by putting "--" in front of the comment.
+-- You can put "--" at the end of a line with "=" in it, or at the beginning of an empty/new line (minetest will ignore what's behind it then).
+-- But don't put "--" in front of a line with "=" in it (or else minetest will ignore the setting and you might get an error).
+
+-- If something is still unclear, don't hesitate to post your question @ https://forum.minetest.net/viewtopic.php?id=6921
+
+abstract_ferns.config = {}
+
+-- Which plants should generate/spawn?
+abstract_ferns.config.Lady_fern			= true
+abstract_ferns.config.Horsetails 		= true
+abstract_ferns.config.Tree_Fern 		= true
+abstract_ferns.config.Giant_Tree_Fern 	= true
+
+-- Where should they generate/spawn? (if they generate/spawn)
+--
+--  Lady-Fern
+abstract_ferns.config.Ferns_near_Tree = true
+abstract_ferns.config.Ferns_near_Rock = true
+abstract_ferns.config.Ferns_near_Ores = true				-- if there's a bunch of ferns there's ores nearby, this one causes a huge fps drop
+abstract_ferns.config.Ferns_in_Groups = false				-- this one is meant as a replacement of Ferns_near_Ores: ferns tend to generate in groups, less fps drop, no hint for nearby ores
+--
+--	Horsetails
+abstract_ferns.config.Horsetails_Spawning = false			-- horsetails will grow in already explored areas, over time, near water or gravel
+abstract_ferns.config.Horsetails_on_Grass = true			-- on dirt with grass and swamp (sumpf mod)
+abstract_ferns.config.Horsetails_on_Stony = true			-- on gravel, mossy cobble and silex (stoneage mod)
+--
+-- Tree_Fern
+abstract_ferns.config.Tree_Ferns_in_Jungle = true
+abstract_ferns.config.Tree_Ferns_for_Oases = true			-- for oases and tropical beaches
+--
+-- Giant_Tree_Fern
+abstract_ferns.config.Giant_Tree_Ferns_in_Jungle = true
+abstract_ferns.config.Giant_Tree_Ferns_for_Oases = true		-- for oases and tropical beaches
diff --git a/ferns/treefern.lua b/ferns/treefern.lua
index a507620..01e2d2c 100644
--- a/ferns/treefern.lua
+++ b/ferns/treefern.lua
@@ -188,58 +188,60 @@ minetest.register_abm({
 -----------------------------------------------------------------------------------------------
 -- GENERATE TREE FERN
 -----------------------------------------------------------------------------------------------
+
+assert(abstract_ferns.config.Tree_Fern == true)
+
 -- in jungles
-if Tree_Ferns_in_Jungle == true	then
-plantslib:register_generate_plant({
-    surface = {
-		"default:dirt_with_grass", 
-		"default:sand", 
-		"default:desert_sand"--, 
-		--"dryplants:grass_short"
+if abstract_ferns.config.Tree_Ferns_in_Jungle == true then
+	plantslib:register_generate_plant({
+		surface = {
+			"default:dirt_with_grass",
+			"default:sand",
+			"default:desert_sand",
+		},
+		max_count = 35,--27,
+		avoid_nodes = {"default:tree"},
+		avoid_radius = 4,
+		rarity = 50,
+		seed_diff = 329,
+		min_elevation = -10,
+		near_nodes = {"default:jungletree"},
+		near_nodes_size = 6,
+		near_nodes_vertical = 2,--4,
+		near_nodes_count = 1,
+		plantlife_limit = -0.9,
+		humidity_max = -1.0,
+		humidity_min = 0.4,
+		temp_max = -0.5,
+		temp_min = 0.13,
 	},
-    max_count = 35,--27,
-    avoid_nodes = {"default:tree"},
-    avoid_radius = 4,
-    rarity = 50,
-    seed_diff = 329,
-    min_elevation = -10,
-	near_nodes = {"default:jungletree"},
-	near_nodes_size = 6,
-	near_nodes_vertical = 2,--4,
-	near_nodes_count = 1,
-    plantlife_limit = -0.9,
-    humidity_max = -1.0,
-    humidity_min = 0.4,
-    temp_max = -0.5,
-    temp_min = 0.13,
-  },
-  abstract_ferns.grow_tree_fern
-)
+	abstract_ferns.grow_tree_fern
+	)
 end
 
 -- for oases & tropical beaches
-if Tree_Ferns_for_Oases == true then
-plantslib:register_generate_plant({
-    surface = {
-		"default:sand"--,
-		--"default:desert_sand"
+if abstract_ferns.config.Tree_Ferns_for_Oases == true then
+	plantslib:register_generate_plant({
+		surface = {
+			"default:sand"--,
+			--"default:desert_sand"
+		},
+		max_count = 35,
+		rarity = 50,
+		seed_diff = 329,
+		neighbors = {"default:desert_sand"},
+		ncount = 1,
+		min_elevation = 1,
+		near_nodes = {"default:water_source"},
+		near_nodes_size = 2,
+		near_nodes_vertical = 1,
+		near_nodes_count = 1,
+		plantlife_limit = -0.9,
+		humidity_max = -1.0,
+		humidity_min = 1.0,
+		temp_max = -1.0,
+		temp_min = 1.0,
 	},
-    max_count = 35,
-    rarity = 50,
-    seed_diff = 329,
-	neighbors = {"default:desert_sand"},
-	ncount = 1,
-    min_elevation = 1,
-	near_nodes = {"default:water_source"},
-	near_nodes_size = 2,
-	near_nodes_vertical = 1,
-	near_nodes_count = 1,
-    plantlife_limit = -0.9,
-    humidity_max = -1.0,
-    humidity_min = 1.0,
-    temp_max = -1.0,
-    temp_min = 1.0,
-  },
-  abstract_ferns.grow_tree_fern
+	abstract_ferns.grow_tree_fern
 )
 end