diff --git a/fs_edit_general.lua b/fs_edit_general.lua
index ea47ec9..295f7c5 100644
--- a/fs_edit_general.lua
+++ b/fs_edit_general.lua
@@ -661,6 +661,8 @@ yl_speak_up.save_element_p_or_a_or_e = function(
 		   and data.item_group ~= "- no, just this one item -") then
 			v["p_item_group"] = data.item_group
 		end
+		v["p_item_stack_size"] = data.item_stack_size
+		v["p_match_stack_size"] = data.match_stack_size
 		local player_inv = player:get_inventory()
 		if(not(player_inv:room_for_item("main", stack))) then
 			yl_speak_up.show_fs(player, "msg", {
@@ -902,10 +904,14 @@ yl_speak_up.input_fs_edit_option_related = function(player, formname, fields,
 			return
 		end
 
-	elseif(fields.select_accept_group
+	elseif(fields.select_accept_group and fields.select_accept_group ~= ""
 	  and data and data.what and what_type == "player_offered_item" and id_prefix == "p_") then
 		data.item_group = fields.select_accept_group
 
+	elseif(fields.select_match_stack_size and fields.select_match_stack_size ~= ""
+	  and data and data.what and what_type == "player_offered_item" and id_prefix == "p_") then
+		data.match_stack_size = fields.select_match_stack_size:split(" ")[1]
+
 	-- comparison value for a variable (same for both preconditions and effects)
 	elseif(fields.var_cmp_value
 	  and data and data.what and what_type == "state" and id_prefix ~= "a_") then
@@ -1166,6 +1172,7 @@ yl_speak_up.input_fs_edit_option_related = function(player, formname, fields,
 	  or fields.select_inv or fields.select_block
 	  or fields.inv_list_name
 	  or fields.select_accept_group
+	  or fields.select_match_stack_size
 	  or fields.select_variable or fields.select_operator
 	  or fields.select_on_failure
 	  or fields.select_on_action_failure
@@ -1341,6 +1348,8 @@ yl_speak_up.get_fs_edit_option_related = function(player, table_click_result,
 			data.item_desc = e[ "p_item_desc" ]
 			data.item_quest_id = e[ "p_item_quest_id" ]
 			data.item_group    = e[ "p_item_group" ]
+			data.item_stack_size = e["p_item_stack_size"]
+			data.match_stack_size = e["p_match_stack_size"]
 		end
 
 		if(e[ "alternate_text"]) then
@@ -2057,20 +2066,21 @@ yl_speak_up.get_fs_edit_option_action_npc_wants_or_accepts = function(
 		data.item_quest_id = data.item_quest_id or e["item_quest_id"]
 		data.item_desc = data.item_desc or e["item_desc"]
 		data.item_group = data.item_group or e["item_group"]
+		data.item_stack_size = data.item_stack_size or e["item_stack_size"]
+		data.match_stack_size = data.match_stack_size or e["match_stack_size"]
 	end
 	if(data and (data.item_node_name or data.item_string)) then
 		node_name = tostring(data.item_node_name or data.item_string)
 		bg_img = "item_image[1.15,3.65;0.7,0.7;"..node_name.."]"
 	end
-	wants_or_accepts = "wants"
-	action_failure_info = ""
+	info_text = ""
 	if(id_prefix == "p_") then
-		wants_or_accepts = "accepts"
 		local group_list = {minetest.formspec_escape("- no, just this one item -")}
 		-- get node name without amount
 		local parts = node_name:split(" ")
 		local nr = 1
 		local count = 1
+		local amount = tostring(1)
 		-- prepare group_list
 		if(data and parts and minetest.registered_items[ parts[1] ]) then
 			for k,v in pairs(minetest.registered_items[ parts[1] ].groups) do
@@ -2080,19 +2090,37 @@ yl_speak_up.get_fs_edit_option_action_npc_wants_or_accepts = function(
 					nr = count
 				end
 			end
+			amount = tostring(parts[2])
 		end
-		-- use this for the group selection dialog as well
-		action_failure_info = "label[1,4.8;...and also all other items of the group:]"..
+		local size_list = {"any amount", "exactly "..amount,
+			"less than "..amount, "more than "..amount, "other amount than "..amount}
+		local match_size = 1
+		for i, list_text in ipairs(size_list) do
+			if(data.match_stack_size and data.match_stack_size == list_text:split(" ")[ 1 ]) then
+				match_size = i
+			end
+		end
+		if(data) then
+			data.item_stack_size = amount
+		end
+		info_text =
+			"label[1,2.6;The player offered:]"..
+			"label[6.7,3.1;of:]"..
+			"dropdown[2,2.8;4.5,0.6;select_match_stack_size;"..
+				table.concat(size_list, ",")..";"..
+				tostring(match_size or 1)..";]"..
+			"label[1,4.8;...and also all other items of the group:]"..
 			"dropdown[2,5.1;5.0,0.6;select_accept_group;"..
 				table.concat(group_list, ",")..";"..tostring(nr)..";]"
 	else
-		action_failure_info = yl_speak_up.set_on_action_failure_dialog(pname, data,
+		info_text =
+			"label[1,3.1;"..minetest.formspec_escape(dialog.n_npc or "?").." wants:]"..
+			yl_speak_up.set_on_action_failure_dialog(pname, data,
 						"The player shall give the NPC this item.")
 	end
 	return formspec..
 		"label[8,2.6;Your inventory:]"..
 		"list[current_player;main;8,3;8,4;]"..
-		"label[1,3.1;"..minetest.formspec_escape(dialog.n_npc or "?").." "..wants_or_accepts..":]"..
 		"list[detached:yl_speak_up_player_"..pname..";npc_wants;2,3.5;1,1;]"..
 		"label[3.2,4.0;"..
 			minetest.formspec_escape(
@@ -2113,7 +2141,7 @@ yl_speak_up.get_fs_edit_option_action_npc_wants_or_accepts = function(
 				 data.item_desc
 				 or "- none set -").."]"..
 		bg_img..
-		action_failure_info..
+		info_text..
 		save_button
 end