I don't know about the bkg, but you can make all the vars you need and set Text commands with the contents of those vars in them. For items and such, just use the InternalMenu command for now until you can make custom stuff.
(giveitem,take item, blah blah blah)
I'm making totally customized commands for my game with VB (I hope)
Ill put them on the shack for all to stare in awe and fight over like viscious wolves Laughing .