Grease Pencil Overlay in VSE?

Hi! Is there a way for me to add overlays in a video using the grease pencil?

I’m editing a video tutorial I recorded, and I just want to add red boxes around buttons and stuff to make it easier to follow. I was using Screencast-o-matic before but I want to see if I can do this more efficiently using Blender’s VSE.


I think you can only do an OpenGL preview render to get the GP to stick?

Thanks! Actually, that’s all I needed. I noticed that in 2.73 I can now draw directly in the VSE Preview window!

Unfortunately it is extremely unstable form me and constantly crashes Blender =(