In 2:35 we have to mode. When we select Yes and private mote ends, all the collaborators will see the author or only I as facilitator have the power to see them. Need is that for all, it acts as private mode always but as facilitator I should be able to see who does what so that at later stage I can address the concern of specific person.

The only two things that bother me about this mode are: 1. The others see a white block in the places where you add the objects and therefore if two people want to place an object in the same place one of them will necessarily be covered by the other 2. The pen cannot be used Basically I was looking for an app for a game where the players see a "clean" map while the organizer sees another map with points of interest (not visible in the clean map) that the players can stumble upon if they pass through those parts (by drawing a line through that point), and for this I need two superimposed images with the possibility of drawing on them. If only there was an alternative...