First I want to thank you for creating this nifty tool

I sometimes game on one pc and other times and another from a portable HDD.
What I'd like to do is to backup all savegames before I move from one PC to another to the portable HDD, and restore them all on the other PC. And do the reverse when I leave that other PC to restore them when using the other one.
I don't want to install any scheduled tasks on the other PC.
I saw the /restore command-line option but wasn't able to figure out the exact details, also with backing up.
Is this possible and, if yes, how would I go about that?
TIA