I tried that, but when i choose a background it adds it as a level. I the latest version when i click the open button next to background it gives a content not found message.
That is a good point that I never noticed before when using the character manager: there is no way to select a background other than adding it as a level. I imagine this could be remedied by adding a Lvl 0 to the manager that can only be used for a background.