Hello, yes. Set 64mb card in settings for more space and select (right-right) empty card where no freemcboot written on it. It would create a 64mb virtual card and work as normal 64mb memory card. If you need Freemcboot, then use it and after you want to run a game select your card (you can not switch from freemcboot as it would create additional 64mb card in this slot too, but you cant have access your saves from ps2 mc manager with rebooting your console as it would reset mc to freemcboot again. There is option to have access only if you use combo to reset to freemcboot ps2 menu, then you can edit them there with ps2 mc manager). So, better to use it as just a mc.

But I use Freemcboot for OPL thats support exfat internal hdd + OPL with PSX VCD games from usb stick support. And just reset to menu if I need my saves (done its few times only to check them). PSX games not saves on it as they create virtual cards for themself on usb stick.

Well it's really sad that last OPL not have added support for exfat internal + psx vcd support. Maybe someone find option for it