diff --git a/utils.lua b/utils.lua
index b3b0c62..ff76053 100644
--- a/utils.lua
+++ b/utils.lua
@@ -19,30 +19,39 @@ local S=minetest.get_translator("industrialtest")
 local powerStorageInspectorContext={}
 local function inspectNode(pos,playerName)
 	local meta=minetest.get_meta(pos)
+	local sides={"X-","X+","Y-","Y+","Z-","Z+"}
 	local powerCapacity=meta:get_int("industrialtest.powerCapacity")
 	local powerFlow=meta:get_int("industrialtest.powerFlow")
 	local powerAmount=meta:get_int("industrialtest.powerAmount")
-	local powerIOConfig=meta:get_string("industrialtest.ioConfig")
+	local powerIOConfig
+	if industrialtest.api.isExtendedIoConfig(meta) then
+		powerIOConfig="\n"
+		local ioConfig=minetest.deserialize(meta:get_string("industrialtest.ioConfig"))
+		for i,config in ipairs(ioConfig) do
+			powerIOConfig=powerIOConfig..sides[i].." "..config.mode.." "..config.flow.."\n"
+		end
+	else
+		powerIOConfig=meta:get_string("industrialtest.ioConfig")
+	end
 	local formspec={
 		"formspec_version[4]",
-		"size[8,8]",
+		"size[15,15]",
 		"label[0.5,0.5;"..S("Power Storage Inspector").."]",
 		"label[0.5,1.5;"..S("Power Capacity: @1",powerCapacity).."]",
 		"label[0.5,1.9;"..S("Power Flow: @1",powerFlow).."]",
 		"label[0.5,2.3;"..S("Power Amount: @1",powerAmount).."]",
 		"label[0.5,2.7;"..S("Power IO Config: @1",powerIOConfig).."]",
-		"field[0.5,3.7;2,0.5;powerCapacity;"..S("Power Capacity")..";"..powerCapacity.."]",
-		"field[0.5,4.5;2,0.5;powerFlow;"..S("Power Flow")..";"..powerFlow.."]",
-		"field[0.5,5.4;2,0.5;powerAmount;"..S("Power Amount")..";"..powerAmount.."]",
-		"field[0.5,6.2;2,0.5;powerIOConfig;"..S("Power IO Config")..";"..powerIOConfig.."]",
-		"button[0.5,6.8;2,0.5;update;"..S("Update").."]",
+		"field[0.5,7.0;2,0.5;powerCapacity;"..S("Power Capacity")..";"..powerCapacity.."]",
+		"field[0.5,8.0;2,0.5;powerFlow;"..S("Power Flow")..";"..powerFlow.."]",
+		"field[0.5,9.0;2,0.5;powerAmount;"..S("Power Amount")..";"..powerAmount.."]",
+		"field[0.5,10.0;2,0.5;powerIOConfig;"..S("Power IO Config")..";"..meta:get_string("industrialtest.ioConfig").."]",
+		"button[0.5,11.0;2,0.5;update;"..S("Update").."]",
 		"label[4.2,2.25;"..S("Connections:").."]"
 	}
 	local connections=industrialtest.api.getConnections(pos)
-	local sides={"X-","X+","Y-","Y+","Z-","Z+"}
 	local sideString=""
-	for _,value in ipairs(connections) do
-		sideString=sideString.."("..value.x..", "..value.y..", "..value.z..")\n"
+	for i,value in ipairs(connections) do
+		sideString=sideString..sides[i].." ("..value.x..", "..value.y..", "..value.z..")\n"
 	end
 	table.insert(formspec,"label[4.2,2.65;"..sideString.."]")
 	powerStorageInspectorContext[playerName]=pos
@@ -71,7 +80,11 @@ minetest.register_on_player_receive_fields(function(player,formname,fields)
 		meta:set_int("industrialtest.powerCapacity",tonumber(fields.powerCapacity))
 		meta:set_int("industrialtest.powerFlow",tonumber(fields.powerFlow))
 		meta:set_int("industrialtest.powerAmount",tonumber(fields.powerAmount))
-		meta:set_string("industrialtest.powerIOConfig",fields.powerIOConfig)
+		if industrialtest.api.isExtendedIoConfig(meta) then
+			meta:set_string("industrialtest.powerIOConfig",minetest.serialize(fields.powerIOConfig))
+		else
+			meta:set_string("industrialtest.powerIOConfig",fields.powerIOConfig)
+		end
 		local def=minetest.registered_nodes[minetest.get_node(context).name]
 		if def and def._industrialtest_updateFormspec then
 			def._industrialtest_updateFormspec(context)