VST Live 2 and dspMix: Window Size and Stream Deck Control

When I open both VST Live 2 and the dspMix app on my laptop, only the one in the foreground can be operated — the other becomes inactive.

I understand that dspMix can now be controlled via Stream Deck.
Can Stream Deck control dspMix even when it’s not the active (foreground) window?

If that’s not possible, I’d like to make the VST Live 2 window smaller so that I can keep both apps visible, but it doesn’t seem to resize below a certain minimum size.
Is there any way to make the VST Live 2 window smaller than the current minimum?