diff --git a/README.md b/README.md
index 6f5e2d4..489ebab 100644
--- a/README.md
+++ b/README.md
@@ -14,9 +14,10 @@ Unified inventory code is licensed under the GNU LGPLv2+.
 Licenses for textures:
 
 VanessaE: (WTFPL)
-  * ui\_group.png
+  * `ui_group.png`
 
 RealBadAngel: (WTFPL)
   * Everything else.
 
-
+Tango Project: (WTFPL)
+  * `ui_reset_icon.png
diff --git a/callbacks.lua b/callbacks.lua
index e86cac6..ad6de0a 100644
--- a/callbacks.lua
+++ b/callbacks.lua
@@ -120,6 +120,9 @@ minetest.register_on_player_receive_fields(function(player, formname, fields)
 			if string.sub(clicked_item, 1, 6) == "group:" then
 				minetest.sound_play("click", {to_player=player_name, gain = 0.1})
 				unified_inventory.apply_filter(player, clicked_item, new_dir)
+				unified_inventory.current_searchbox[player_name] = clicked_item
+				unified_inventory.set_inventory_formspec(player,
+					unified_inventory.current_page[player_name])
 				return
 			end
 			if new_dir == "recipe"
@@ -153,11 +156,17 @@ minetest.register_on_player_receive_fields(function(player, formname, fields)
 
 	if fields.searchbutton then
 		unified_inventory.apply_filter(player, unified_inventory.current_searchbox[player_name], "nochange")
-		unified_inventory.current_searchbox[player_name] = ""
 		unified_inventory.set_inventory_formspec(player,
 				unified_inventory.current_page[player_name])
 		minetest.sound_play("paperflip2",
 				{to_player=player_name, gain = 1.0})
+	elseif fields.searchresetbutton then
+		unified_inventory.apply_filter(player, "", "nochange")
+		unified_inventory.current_searchbox[player_name] = ""
+		unified_inventory.set_inventory_formspec(player,
+				unified_inventory.current_page[player_name])
+		minetest.sound_play("click",
+				{to_player=player_name, gain = 0.1})
 	end
 
 	-- alternate buttons
diff --git a/group.lua b/group.lua
index 9bf6895..23e2587 100644
--- a/group.lua
+++ b/group.lua
@@ -1,3 +1,5 @@
+local S = unified_inventory.gettext
+
 function unified_inventory.canonical_item_spec_matcher(spec)
 	local specname = ItemStack(spec):get_name()
 	if specname:sub(1, 6) == "group:" then
@@ -21,9 +23,36 @@ function unified_inventory.item_matches_spec(item, spec)
 	return unified_inventory.canonical_item_spec_matcher(spec)(itemname)
 end
 
+function unified_inventory.extract_groupnames(groupname)
+	local specname = ItemStack(groupname):get_name()
+	if specname:sub(1, 6) == "group:" then
+		local group_names = specname:sub(7):split(",")
+		if #group_names == 1 then
+			return group_names[1], 1
+		end
+		local s = ""
+		for g=1,#group_names do
+			if g > 1 then
+				-- List connector
+				s = s .. S(" and ")
+			end
+			s = s .. group_names[g]
+		end
+		return s, #group_names
+	else
+		return nil, 0
+	end
+end
+
 unified_inventory.registered_group_items = {
 	mesecon_conductor_craftable = "mesecons:wire_00000000_off",
 	stone = "default:cobble",
+	wood = "default:wood",
+	book = "default:book",
+	sand = "default:sand",
+	leaves = "default:leaves",
+	tree = "default:tree",
+	vessel = "vessels:glass_bottle",
 	wool = "wool:white",
 }
 
diff --git a/internal.lua b/internal.lua
index 8319191..42ab722 100644
--- a/internal.lua
+++ b/internal.lua
@@ -179,13 +179,19 @@ function unified_inventory.get_formspec(player, page)
 			.. minetest.formspec_escape(unified_inventory.current_searchbox[player_name]) .. "]"
 		formspec[n+1] = "image_button[12.2,8.1;.8,.8;ui_search_icon.png;searchbutton;]"
 			.. "tooltip[searchbutton;" ..F("Search") .. "]"
+		formspec[n+2] = "image_button[12.9,8.1;.8,.8;ui_reset_icon.png;searchresetbutton;]"
+			.. "tooltip[searchbutton;" ..F("Search") .. "]"
+			.. "tooltip[searchresetbutton;" ..F("Reset search and display everything") .. "]"
 	else
 		formspec[n] = "field[8.5,5.225;2.2,1;searchbox;;"
 			.. minetest.formspec_escape(unified_inventory.current_searchbox[player_name]) .. "]"
 		formspec[n+1] = "image_button[10.3,5;.8,.8;ui_search_icon.png;searchbutton;]"
 			.. "tooltip[searchbutton;" ..F("Search") .. "]"
+		formspec[n+2] = "image_button[11,5;.8,.8;ui_reset_icon.png;searchresetbutton;]"
+			.. "tooltip[searchbutton;" ..F("Search") .. "]"
+			.. "tooltip[searchresetbutton;" ..F("Reset search and display everything") .. "]"
 	end
-	n = n+2
+	n = n+3
 
 	local no_matches = "No matching items"
 	if draw_lite_mode then
diff --git a/locale/de.txt b/locale/de.txt
index 6ceab4c..a2f7c3d 100644
--- a/locale/de.txt
+++ b/locale/de.txt
@@ -25,6 +25,7 @@ Page = Seite
 %s of %s = %s von %s
 Filter = Filter
 Search = Suchen
+Reset search and display everything = Suche zurücksetzen und alles anzeigen
 
 ### register.lua ###
 Can use the creative inventory = Kann das Kreativinventar nutzen
@@ -56,6 +57,8 @@ Show next usage = Nächste Verwendung zeigen
 Show previous recipe = Vorheriges Rezept zeigen
 Show previous usage = Vorherige Verwendung zeigen
 This recipe is too\nlarge to be displayed. = Dieses Rezept ist zu\ngroß, um angezeigt\nzu werden.
+Any item belonging to the %s group = Irgendein Gegenstand, der zur Gruppe %s gehört
+Any item belonging to the groups %s = Irgendein Gegenstand, der zu den Gruppen %s gehört
 Recipe %d of %d = Rezept %d von %d
 Usage %d of %d = Verwendung %d von %d
 No recipes = Keine Rezepte
@@ -70,6 +73,9 @@ Clear inventory = Inventar leeren
 Give me: = Gib mir:
 To craft grid: = Ins Fertigungsraster:
 
+### group.lua ###
+\sand\s=\sund\s
+
 ### waypoints.lua ###
 White = Weiß
 Yellow = Gelb
diff --git a/locale/template.txt b/locale/template.txt
index 73194d4..bd27f2f 100644
--- a/locale/template.txt
+++ b/locale/template.txt
@@ -26,6 +26,7 @@ Page =
 %s of %s = 
 Filter = 
 Search = 
+Reset search and display everything = 
 
 ### register.lua ###
 Can use the creative inventory = 
@@ -59,6 +60,10 @@ Show previous recipe =
 Show previous usage = 
 # Shown for huge crafting recipes; try to keep the line length short and use multiple line breaks as needed
 This recipe is too\nlarge to be displayed. = 
+# %s = group name (e.g. wool)
+Any item belonging to the %s group = 
+# %s = List of “and”-concatenated group names
+Any item belonging to the groups %s =
 Recipe %d of %d = 
 Usage %d of %d = 
 No recipes =
@@ -73,6 +78,10 @@ Clear inventory =
 Give me: =
 To craft grid: =
 
+### group.lua ###
+# Logical connective, example: “Any item belonging to the groups foo and bar”
+\sand\s = 
+
 ### waypoints.lua ###
 White = 
 Yellow = 
diff --git a/register.lua b/register.lua
index 55bbdb0..ff38168 100644
--- a/register.lua
+++ b/register.lua
@@ -188,11 +188,24 @@ local function stack_image_button(x, y, w, h, buttonname_prefix, item)
 		selectitem = group_item.sole and displayitem or name
 	end
 	local label = show_is_group and "G" or ""
-	return string.format("item_image_button[%f,%f;%f,%f;%s;%s;%s]",
+	local buttonname = minetest.formspec_escape(buttonname_prefix..unified_inventory.mangle_for_formspec(selectitem))
+	local button = string.format("item_image_button[%f,%f;%f,%f;%s;%s;%s]",
 			x, y, w, h,
-			minetest.formspec_escape(displayitem),
-			minetest.formspec_escape(buttonname_prefix..unified_inventory.mangle_for_formspec(selectitem)),
-			label)
+			minetest.formspec_escape(displayitem), buttonname, label)
+	if show_is_group then
+		local groupstring, andcount = unified_inventory.extract_groupnames(name)
+		local grouptip
+		if andcount == 1 then
+			grouptip = string.format(S("Any item belonging to the %s group"), groupstring)
+		elseif andcount > 1 then
+			grouptip = string.format(S("Any item belonging to the groups %s"), groupstring)
+		end
+		grouptip = minetest.formspec_escape(grouptip)
+		if andcount >= 1 then
+			button = button  .. string.format("tooltip[%s;%s]", buttonname, grouptip)
+		end
+	end
+	return button
 end
 
 local recipe_text = {
diff --git a/textures/ui_reset_icon.png b/textures/ui_reset_icon.png
new file mode 100644
index 0000000..ec9ef62
Binary files /dev/null and b/textures/ui_reset_icon.png differ