The key word is "auxilary". The Rocket doesn't have an auxilary fuse panel, just a main panel that you really shouldn't mess with.
EB is talking about one of their other products such as the PC-8 or the 3-circuit solution. I have the PC-8 and it works great.
For the short term, you are better off going down to your local auto parts place and buying a <$5 fuse holder.