I am using Manjaro with i3 desktop on Virtualbox and I can't seem to figure out what the mod key is (I'm using a standard English keyboard).
I've done the expected finger mashing and have tried several different combinations to no avail.
I know the key to release from the Host is the Right-Cntrl key.
I've read that the Windows (Super) key can be the mod key but this has not seemed to be successful for me. For instance, I've been trying to do
Super+Enterto open a terminal.