Dual degree?

Would it be too difficult to transfer into M&T after freshman year, or is applying and being accepted into the uncoordinated dual degree easier?

I was already accepted into the engineering school, which is really where my interests lie. I can’t apply for dual degree as an incoming freshman, right? When I choose my courses, are there any required courses I have to take in order to be accepted as a dual degree student at the end of freshman year, or I can just take the required courses for SEAS students?

I am aware that if I do decide to do uncoordinated dual degree, there is a possibility I will have to take another year to fulfill my credits requirements. But is there a way I can extend the maximum number of credits per semester so I can graduate on time?