To apply an enrollment profile to students, navigate to Students, and choose the multi-action Apply Enrollment Profile.  You need the Actions Full role to use this multi-action.

See also
PCR Educator K-12 School Information System is an online database engineered for independent and private schools to deliver the highest level of flexibility, unique experience, transparent communication and customized design. Being a complete cloud-based solution, PCR Educator system guarantees convenient access anytime, anywhere.