Dynatube and Dynatube Bass

[Mr Arkadin]

Well i just got Dynatube Bass to compliment my Dynatube. However in the description in the manual it says to try the other cabinets, including the guitar ones, but doesn't say how to achieve this. i want to try this but in the drop downs of the cabinets i only see the cabs specific to each package - how can i see all the cabs?