Mixer vs project view

Cubase says that they are now more focus that the mixer is now more main window that project windows that has been before. But I cant find any keycommand to put the project window out of the way as you can
for mixer views. There is a “Bring to front” as project key command. But no Bring to background or hide. Mixer view can easily be toggled to view/no-view. Any way to solve this?

You can use different global workspaces for mixer- and project-window view. Then you can allocate key commands for every workspace.