Add everything that LumaFusion can do, and then add a pan and tilt functions for videos and titles.
Look at LumaFusion. Copy that.
I pay for my Adobe Subscription, you would think I could have a cool Adobe app to make cool videos with. The advertising catch copy on the iTunes store looked so amazing, that I opened up Rush and tested it (again) expecting some amazing features or titler or something....I got blah.... oh well.