Can the editor play in full screen?

When editing in Unity, I'd really like to be able to play in full screen. Setting the player to "Maximize on Play" helps, but it's not quite the same, and can potentially show misleading visuals. I'm guessing that the answer is no, but I'm hoping that there's a way to have Unity display the player in fullscreen when playing from the editor. I see that I can drag the Game tab out as a separate window, which helps, but I'd like to take over my entire screen if possible.

No, it's not possible. I'm not quite sure how you get misleading visuals with Maximize on Play, unless your code doesn't take into account different screen sizes.

also had this problem very often when setting up Projections with 2 Beamer. this editor Script works out great in Unity 5

This utility on asset store makes it possible: