is there a way to change FPS? in an existing project?

ive tried looking everywhere. the only way to do it that i have found, was to re-import the stills at a different FPS multiple times until i got the speed i wanted. there must be a simpler way right???

Unfortunately currently there is no other way to change the FPS of a iStopMotion Mac project. You have to export and re-import the images. We have this on our feature list!