It would be nice to access all the experimentation/personalization modules from the editor. In the old editor, we always had the option to click any module from th left, like metrics, shared code, targeting, etc., but now, the editor opens on top of that dashboard, and the only way to go back is by clicking 'return to setup,' which makes it a longer process to go through. It is also very slow, so I take too long checking all the sections of the experiment/personalization. I get that the editor now takes up the whole screen, but adding a drop-down to go to the sections instead of 'return setup' would be a lot better. Also, the bottom toolbar could be consolidated to fewer buttons that do the same. Like the edit, variation code editor and changes seem to take you to the same thing. I don't want to choose for most users, but right now the options in the toolbar are overwhelming because they mostly do the same thing. I wish the emulation of other devices didn't open as a pop-up either, because when I'm sharing my window, it won't appear. I have a very big screen. Anyway, I think it could be better.