Awesome app! Just one question...

I absolutely love this app, and make amazing movies (as seen in my YouTube channel "Deer on a Hill Studios"). But I have one question. How do you make the foreground only in specific spots? If anyone can answer this, please do, this limits me tremendously. And if there is no way, make an update where you can. Thanks for reading.

SirTurtle Tux about Stop Motion Studio Pro