There's another thing, I'd like to add (X1 related - please tell me, how it is in X2):
The
SYNTH RACK button bring's up the browser, but there is no way to
hide it by pressing it again.
So: when on the browser the point "synth" is selected, pressing the
SYNTH RACK button should hide the browser. If "media" or "plugins" is selected, the SYNTH RACK button should revert to the point "synth" (and by pressing it again, locigally, the browser should be hidden just then).