Walkable Areas And Objects

[rock_chick]

I now intergrate most things I want to use for my game into the background as I can then work with the walkable areas easier but want to know if there's a way to use walkable areas and objects together? Like I want to have a chest that is solid but as an object it can't be viewed when desiging the walkable areas. Any help would be much appreciated!
Kat

[Mr Jake]

what I think most people do is draw the object on their background and then either put an object on top of it (for animating purpose) or put an object on the part that needs animating