Ok after looking and crying over the crap… 
I have redone the whole code.
- Now you can spawn in containers with any amount of slots. Note if you have to many slots you will not be able to see them all…
- Can move items to one inventory to another.
- you can push Esc in the inventory to get out of the Inventory the you can press it again to exit the game
Still need to add…
- Stack limits
- optimizing and user friendly
- some wibbly wobbly time stuffs
- And gui Resizing
Here it is!
Inventory 1.blend (1.48 MB)