It's a minor quibble, and maybe I'm just missing something, but my issue is this:
Select, for example, Oscillator 2 and edit, and move to edit page 2.
Now edit anything else, then hit the Oscilliator edit again. Notice you're brought back to page 2, the edit page you had been at last.
Now try the same thing with the Mod Matrix:
Select the Mod Matrix, move down to Slot 2.
Edit anything else, then hit Mod Matrix again. Notice you're brought back to Slot 1, rather than the page you had been at last.
As said, this is a minor complaint, but it'd be nice not to have to hit the Mod Matrix button six times every time you want to return to editing Slot 6,
and to not have to remember which slot you were just editing every time you leave the menu.