Hi 
I normally use:
. CTRL + L
to access the class panel. It scan and brings up the classes i use thee most
. CTRL + D
Obvious…
. CTRL+ H
It brings out the code panel, focused on the element I’ve selected
. CTRL + G
Grid
I agree that having a simple personal set of shortcuts could come handy - within AI / PS / INDD i setted up all sort of strange shortcuts for my needs, so I understand you.
Anyway, I see it’s from August your post, how’s it going with Pinegrow? Hope you enjoy it!
Have a good day