An in app workaround:   Create a single patch and apply the image to the patch as a Patch Image. Adjust transparency, rotation and other settings as necessary.   What this has over standard rotoscopes is the advantage of being able to be rotated and placed anywhere in 3D space whereas a standard roto can only be placed in a strict location parallel to the camera plane.   Once positioned then make the patch unpickable... by locking the CPs of the main patch... the settings can still be adj