Did I misunderstand the question? I was assuming this was about Control Bar Module configuration. Not the actual docking position of the CB (top/bottom/whatevs).
If so, my apologies but in that case I can only presume my previous suggestion would work for that as well.
I seem to recall a while back that the ability to transfer Screensets from project to project was possible.
Honestly I never use any of this stuff (like screensets) because I find, in general, the defaults work just fine for me. That is likely simply due to the fact I learned the program using the defaults and have become proficient with it as is... not necessarily because the defaults are the best possible configuration imaginable. Also I'm guessing people who are used to using other software and just coming into the SONAR fold have their own, similar, "prejudices" simply because they are used to things being located/operating in a specific place/way.
All that blathering aside... a while back I created a "New Project" template that included some of the little things I do NOT like about the default settings (eg: I have specific CB Module preferences, hate Auto Track Zoom by default but like engaging it manually, etc).
I had honestly fogotten I did that but I do know that I no longer seem to have to screw with stupid fiddle faddle every time I start a new session so apparently... it worked.
The best programs know when to get the frack out of the way (I'm here to make music... not play an extremely annoying and boring video game). Of course "getting out of the fracking way" means different things to different people so it might take a bit of user input... which fortunately Sonar (and other programs) have many options for.
And now I'll go be all philimosophical elsewhere.
Cheers.