However you may be lucky to find some spare benches unused and utalise them.My friend had a CED and a Sibe but as there were 3 rows of unused benches he moved his sibe next to is Ced.No one complained.But guess to the uninitiated they looked similar.
I don't think that officially you are supposed to do that. I think it is something to do with the general public being able to view the dogs as in the catalogue.