The Immodating application form was initially designed for 2 applicants but can easily be managed for 3 or 4. To do so, use the GUARANTOR fields as if they were 1 or 2 extra co-applicants with you – these fields are on the second page in the Finance section. Make sure to submit all relevant documents requested, and to add a comment in the Motivation or another field explaining you will have 3-4 people listed living in the flat.