diff --git a/autocrafter.lua b/autocrafter.lua
index 506be00..c020c49 100644
--- a/autocrafter.lua
+++ b/autocrafter.lua
@@ -279,7 +279,10 @@ minetest.register_node("pipeworks:autocrafter", {
 		update_meta(meta, false)
 	end,
 	on_receive_fields = function(pos, formname, fields, sender)
-		if not pipeworks.may_configure(pos, sender) then return end
+		if (fields.quit and not fields.key_enter_field)
+				or not pipeworks.may_configure(pos, sender) then
+			return
+		end
 		local meta = minetest.get_meta(pos)
 		if fields.on then
 			update_meta(meta, false)
diff --git a/lua_tube.lua b/lua_tube.lua
index 8800133..c5fd24c 100644
--- a/lua_tube.lua
+++ b/lua_tube.lua
@@ -666,6 +666,7 @@ local function reset_formspec(meta, code, errmsg)
 	code = minetest.formspec_escape(code or "")
 	errmsg = minetest.formspec_escape(tostring(errmsg or ""))
 	meta:set_string("formspec", "size[12,10]"
+		.."style_type[label,textarea;font=mono]"
 		.."background[-0.2,-0.25;12.4,10.75;jeija_luac_background.png]"
 		.."label[0.1,8.3;"..errmsg.."]"
 		.."textarea[0.2,0.2;12.2,9.5;code;;"..code.."]"
diff --git a/sorting_tubes.lua b/sorting_tubes.lua
index 89d72a0..10a81a6 100644
--- a/sorting_tubes.lua
+++ b/sorting_tubes.lua
@@ -110,9 +110,22 @@ if pipeworks.enable_mese_tube then
 					update_formspec(pos)
 					meta:set_string("infotext", S("Sorting pneumatic tube"))
 				end,
+				after_place_node = function(pos, placer, itemstack, pointed_thing)
+					if placer and placer:is_player() and placer:get_player_control().aux1 then
+						local meta = minetest.get_meta(pos)
+						for i = 1, 6 do
+							meta:set_int("l"..tostring(i).."s", 0)
+						end
+						update_formspec(pos)
+					end
+					return pipeworks.after_place(pos, placer, itemstack, pointed_thing)
+				end,
 				on_punch = update_formspec,
 				on_receive_fields = function(pos, formname, fields, sender)
-					if not pipeworks.may_configure(pos, sender) then return end
+					if (fields.quit and not fields.key_enter_field)
+							or not pipeworks.may_configure(pos, sender) then
+						return
+					end
 					fs_helpers.on_receive_fields(pos, fields)
 					update_formspec(pos)
 				end,