Is it possible to have two picture-in-pictures at the same time?
I'm working on an instructional video in iMovie for the Mac. At times I want to be able label things in the video. The picture-in-picture works well for this, but it seems like I can only have one picture-in-picture at a time. Is that correct? I'd like to be a able to have multiple picture-in-pictures overlaying my movie at the same time, so I can label multiple items in my video at the same time.
MacBook Pro, macOS Sierra (10.12.3)