Sorry to be late to the thread...
Here is a very clear, simple video that shows how mocha Pro is used to remove objects:Â
mocha Pro does not have "content aware" so if the clean frames do not exist within the shot itself, the user needs to create the painted frame.Â
In my opinion, the most unique aspects of using mocha Pro for removes is both the" illumination modeling" which matches luminance and color shifts and the ability to "interpolate/blend" in multiple clean plates over the course of a shot. Both are significant time savers.Â
For those under budget, upgrade from bundled mocha AE to mocha Pro is $795 (or about $2 a day over 1 year!).Â
Enjoy -Â
Ross