diff --git a/data/gui/actions/panels.lua b/data/gui/actions/panels.lua
index fad3d65..919fae6 100644
--- a/data/gui/actions/panels.lua
+++ b/data/gui/actions/panels.lua
@@ -1,6 +1,6 @@
 -- Add your panel actions here.
 local sapp      	= require("sokol_app")
-
+local nk        	= sg
 
 local panel_actions = {}
 
@@ -8,6 +8,6 @@ panel_actions["quit_app"] = function(event, element)
 
     sapp.sapp_quit()
 end
-
+  
 
 return panel_actions
\ No newline at end of file
diff --git a/data/gui/panels/panels.lua b/data/gui/panels/panels.lua
index 15d4ffa..1edc113 100644
--- a/data/gui/panels/panels.lua
+++ b/data/gui/panels/panels.lua
@@ -5,25 +5,57 @@ local panels    = {}
 
 panels.windows  = {}
 
-panels.windows.popup = {
+-- Note: In Niklear panels/windows are top level and cannot be nested. 
+
+panels.windows.panel_simple = {
     type    = "panel",
-    title   = "Main",
+    title   = "simple",
     size    = {600, "auto"},
-    pos     = {"left", "top"},    -- Can be pixels or strings
+    pos     = {0, 0},    -- Can be pixels or strings
     color   = { background = 0x000000ff, text = 0xffffffff, border = 0x888888ff },
-    window_flags =  bit.bor(nk.NK_WINDOW_TITLE, nk.NK_WINDOW_MOVABLE),
+    window_flags =  bit.bor(0, nk.NK_WINDOW_NO_SCROLLBAR),
 
     layout = {
         { 
             type = "row", height = 24, layout = {
-                { type = "label", text = "Some text", width = 0.1 },
-                { type = "button", text = "Build Project", action = "build_project", width = "auto" },
-                { type = "button", text = "Export", action = "export_assets", width = 200 },
-                { type = "button", text = "Quit", action = "quit_app", width = "auto" },
+                { type = "button", text = "Project", action = "project_config", width = "auto" },
+                { type = "button", text = "Paths", action = "paths_config", width = "auto" },
+                { type = "button", text = "World", action = "world_view", width = "auto" },
+                { type = "button", text = "Assets", action = "assets_view", width = "auto" },
             }
         },
     }
 }
 
+panels.windows.panel_icon_bar = {
+    type    = "panel",
+    title   = "icon_bar",
+    size    = {"auto", 30},
+    pos     = {600, "top"},    -- Can be pixels or strings
+    color   = { background = 0x000000ff, text = 0xffffffff, border = 0x888888ff },
+    window_flags =  bit.bor(0, nk.NK_WINDOW_NO_SCROLLBAR),
+
+    layout = {
+        { 
+            type = "row", height = 24, layout = {
+                { type = "button", text = "Scene", action = "scene_view", width = 80 },
+                { type = "button", text = "Models", action = "model_view", width = 80 },
+                { type = "button", text = "Scripts", action = "scripts_view",width = 80 },
+            }
+        },
+    }
+}
+
+panels.windows.panel_master = {
+    type    = "group",
+    size    = {"auto", "auto"},
+    pos     = {"left", "top"},    -- Can be pixels or strings
+
+    layout = {
+        panels.windows.panel_simple,
+        panels.windows.panel_icon_bar,
+    }
+}
+
 
 return panels
\ No newline at end of file
diff --git a/editor/states/mainGui.lua b/editor/states/mainGui.lua
index 60e81ee..23e8991 100644
--- a/editor/states/mainGui.lua
+++ b/editor/states/mainGui.lua
@@ -52,7 +52,7 @@ function SmainGui:Init(wwidth, wheight)
 	-- SmenuMain:Init(wwidth, wheight)
 	-- SenvHandler:Init(wwidth, wheight)
 	print("Display: "..wwidth.." x "..wheight)
-	panels.windows.popup.parent = { size = { wwidth, wheight } }
+	panels.windows.panel_master.parent = { size = { wwidth, wheight } }
 end
 
 ------------------------------------------------------------------------------------------------------------
@@ -102,19 +102,21 @@ local function get_parent_size( ele )
 	local size = { 1920, 1440 }
 	-- Calc size first since this may be used in positioning (like center etc)
 	if(ele.size) then 
+		local pwidth = ele.parent.size[1] or 1920
 		if(ele.size[1]) then 
 			if(type(ele.size[1]) == "string") then 
 				if(ele.size[1] == "auto") then 
-					size[1] = ele.parent.size[1] or 1920
+					size[1] = pwidth
 				end
 			else 
 				size[1] = tonumber(ele.size[1]) or 100
 			end
 		end
+		local pheight = ele.parent.size[2] or 1440
 		if(ele.size[2]) then 
 			if(type(ele.size[2]) == "string") then 
 				if(ele.size[2] == "auto") then 
-					size[2] = ele.parent.size[2] or 1440
+					size[2] = pheight
 				end
 			else 
 				size[2] = tonumber(ele.size[2]) or 100
@@ -156,6 +158,7 @@ end
 local function get_geometry( ele, winrect )
 
 	local size = get_parent_size( ele )
+	ele.size = size
 	winrect[0].w, winrect[0].h = size[1], size[2]
 	if(ele.pos) then 
 		if(ele.pos[1]) then
@@ -196,7 +199,19 @@ end
 
 local function render_element( ctx, element )
 
-	if(element.type == "panel") then  
+	if(element.type == "group") then  
+
+		element.winrect = element.winrect or ffi.new("struct nk_rect[1]", {{0, 0, 400, 600}})
+		get_geometry(element, element.winrect)
+		if(element.layout) then 
+			for i,v in ipairs(element.layout) do
+				v.parent = element
+				render_element(ctx, v)
+			end
+		end 
+
+	elseif(element.type == "panel") then  
+
 		element.winrect = element.winrect or ffi.new("struct nk_rect[1]", {{0, 0, 400, 600}})
 		get_geometry(element, element.winrect)
 		if (nk.nk_begin(ctx, element.title or "", element.winrect[0], element.window_flags or 0) == true) then
@@ -257,7 +272,7 @@ function SmainGui:Update(mxi, myi, buttons)
 
 	-- SmenuMain:Update(mxi, myi, buttons)
 	-- SenvHandler:Update(mxi, myi, buttons)
-	render_element(mainState.ctx, panels.windows.popup)
+	render_element(mainState.ctx, panels.windows.panel_master)
 	--nkgui:render()
 	
 	self.prevmxi = mxi