Help with a creation

Hi! New to Kano (ish) code.

My daughter is using the Amazon app to make her creations (Little11). She is trying to make a town where you can work and earn coins. then go to a shop and buy stuff (using stickers). She has worked out how to add/earn coins and spend them. She wants the stickers to appear in the home. Is there a way to create an inventory list and those items appear in the home? She also wants the player to be able to do a drawing that then sells for coins (she has set a message to appear after a certain time limit saying the pic has sold). She has been able to set up the drawing but not make it invisible after pressing the finish button. Any ideas/ help? Thanks!