Also, after going into Full Screen, turn off the entire interface except for your main editor, save this as a Layout, and then in the Manage Layouts window, select your “Composition Emulator” layout, click the ••• button, and toggle the “Use Selected Layout When Entering Full Screen”, option.
If I didn’t loath Apple’s Spaces/Full Screen implementation so much[1] I would use this approach and forget Composition Mode even exists. It does that, but if I want, it also does everything else, to whatever degree I want for a moment and then triggering the Layout snaps everything back to minimal again.
Switching out of full screen will restore the project window to how it was, so this isn’t a thing you have to apply and then switch to another Layout to get back—though do note the first time you do this, the act of setting things up is considered “how things were before”, so you would need to turn the header/footer bars back on, etc. first. Consider making a Layout before experimenting with all of this, even if just temporarily, to get things back to how you want.
Oh, and while I’m here, I might as well drop a link to the Butterfly Theme. Granted that may be a retrospective look at this point. I stopped keeping tabs on Ulysses when they stopped selling it.
at a deep and philosophical level; I think computers should be able to multitask, even when you’re focusing on one task, because one task isn’t necessarily one single piece of software ↩︎