Hello all new to recalbox but loving it currently turning 2old pc's into these recall machines as my parents call them and I am having trouble with sending roms over a local network in my house I can get the manager open but it says something about stopping the emulation first

Then is it possible to use 1 sd card/usb drive and if possible in a hdd to run recalbox and store all the roms?

The last issue I have is no matter how I put psx games on the usb it won't load the game even if I can get it to show up in the menu is there a solution for x86