In this activity you can select another contact person from the organization or add a new one.
Once you open the activity you see fields for the authorized signatory and the mentor. Which field is mandatory depends on the settings of the process.
You can choose an existing person from the list. Depending on your role, you may also be able to create a new contact person.
After choosing or adding one person you can add a second one or choose the other role for this person as well.