Hmm, you’re probably better of waiting for the next version that has a few 720p overlays already there.
Sneak preview here
https://mega.co.nz/#!yR4iBQCK!FyIatl1DCjsKPyNWFxpQYSbb40GaYYYRM4l3j5ZmxoM

You would need to delete the old rp-video-manager directory first.