Moving Backdrop?

[Ziplock]

Shot in the dark here, but I've built an engine where my hero entirely interacts with obstacle backdrops. Now I'd like to make a moving platform, but can't do that with backdrops as they can't have behaviors(?). Any workaround for this or do I need to reprogram him to interact with active platforms as well?

[Aloan]

I hear there is an active backdrop as well as a 3rd party object or extension, I guess? I never worked with it anyways, but what i do is always work with actives if it requires any interaction other than just displaying them...