To change the COMX expansion slot from the memory dump tab use the 'Slot' field (values 1 to 4, see lowest yellow ellipse). Expansion ROMs are connected from address C000 to DFFF and when shown the address will have the same colour as the 'Slot' text.
When a slot with the 32K RAM card is selected it is possible to select any of the 8K RAM banks in the 'RAM Bank' field (values 0 to 3, see lowest orange ellipse). The RAM banks are connected from address C000 to DFFF and when shown the memory values will have the same colour as the 'Bank' text
When a slot with the F&M EPROM Switchboard or COMX SuperBoard is selected it is possible to select any of the 8K EPROM banks in the 'Eprom Bank' field (values 0 to 4 for the EPROM board and 0 to F for the SuperBoard, see the lowest blue ellipse).