User blog comment:Topcon/Lessons in customization/@comment-27510501-20160322194438/@comment-173.66.149.107-20160322224356

Paint through can be useful at off camera angles. It produces similar stretched shapes to what has been shown above. Sometimes it's necessary to paint through a duct or something, where mirroring would leave a gap. You can use off angle painted through shape, or patch it by hiding it with another vinyl.

For FM, it would be nice if there was a paint-through AND mirror option. Also, split the rotate & size control so they can be easily independantly controlled. I'd also like to see the ability to snap the shape to 0, 90, 45, etc. angles.