Shortcut from compose mode to editor

I’m using Scrivener with 2 monitor. One is open on Compose mode, the other with Binder and Editor.
Is there a keyboard shortcut to shift from the window with compose mode to the one with the editor?
(I’d like to copy some text from editor’s window and then paste in compose mode).

I hope I’ve been clear. Forgive my english, I’m from Italy.