GarminDrive 61 - want to install one more single country

Hello,
I have Garmin Drive 61 with the western europé package (lives in Sweden) but I miss Hungary.

I am using an iMac, so I can't open .rar files when I try to download the freshest maps.
I don't want to install all of the eastern europé maps, just only Hungary.

On the Garmin Express I can only choose to either have eastern OR western europé package. Really dumb, but I understand that Garmin did this to earn money to sell SD-s with whole europé inside!

Please help me, we are going home to Hungary later on next week and would really like to have Hungary in this Garmin Drive 61.

I also see that I have AutoWW 2023.10 - i suspect that i by mistake installed south africa.
can't find anywhere where i can uninstall it! and the map folder in the garmin is empty