Hi Igor, some good ideas there, thanks!

One other thing that I have thought of before would be to have an additional "Print" tab on the view layout tabs (the ones at the bottom that say Split / 3D / Top / Front / Right), which you could hit to switch the main viewport between 3D model mode or 2D print space mode.

Then when you drew anything (annotations or geometry or whatever) while in print view, those things would get added to the active sheet only and not to the regular 3D model.

Maybe the Print tab would only show up after you have initially created a sheet. But I've also thought about possibly the other way around - that the print button would be shown always and when you hit it some other UI would then also activate for setting up and manipulating sheets, but that idea was before there was a scene browser.

- Michael