+1 for a proper presentation mode. When I walk a team through a diagram, I'd like to hide the toolbars and step through frames in a set order, with a laser pointer that fades after a second so it doesn't leave marks on the canvas. Keeping the drawing tools on keyboard shortcuts would let me sketch on top during Q&A without leaving the mode. I work on Novastart (https://novastart.com/), an infinite canvas workspace, and stepping through frames has been the simplest way to present from a big board.