Hi,
there are ways to combine the aff programs for casinos that do not have such a feature – like the Boss group “CYBER CROUPIERS” had. You still had a different account for each place, but they had a common landing page and you could do all functions from there. It was set up so that automatic form fillers were still functioning, which is a big plus.
It made dealing with these four casinos so much easier. They are now defunct, perhaps you can acquire their setup? I have the email of the owner of the River Boat some place if you need it.
Also, Cedrik from gaming income has designed such a site.