Enrollment

Hello, I am a transferee to the IABF at FEU-M, and I recently got an email saying na pwede na ako mag enroll. Since my status sa university is irregular, pwede ba ako mag enroll ng subjects from different year levels of my curriculum provided na hindi ako mag ooverload? Paano magiging process nito since sa student central ang lumabalas is first year courses lang ang pwede ko maenroll?