Would it be possible to appeal out of CGS to be a part-time student at BU?

Hi y’all! This might be very easily answered, but I was wondering if it would be worth it to try to appeal out of the CGS program to become a part-time student in CAS. I was accepted into the CGS program, which doesn’t exactly fit my plans, and because my current situation has changed even further, I have been looking into being a part time student in the CAS under a different major. Is it even possible to do this? If so is it worth it to try? Any help would be greatly appreciated. Thanks!

There are no part time undergraduate students at CAS or any other division of BU except MET. All part time undergraduate students are in MET College, which is primarily evening and online programs.
https://www.bu.edu/met/