I Used Gparted on Windows, created a bootable USB gparted, set PC to boot from USB, then resized the Recalbox partition, I now have full use of my larger Micro SD 👍
@voljega cheers for the advice, WinSCP bombs out for mesometimes when I’m moving files about over WiFi, I find that with the SD card in my PC, I can transfer files quicker with no dropouts, I take on board your USB point for ROM storage