[iggy1]

Well i don't think there is a list, but you can browse through objects with the object editor on the movement tab, underneath the words "object editor" to the right of "IDE" there are 2 arrows. Clicking these will change the currently selected object to the next object id.

EDIT: I think you can also make your own lists on the objects tab, you may be better off posting in the map editor thread. The turtle might have a way to show a full list.