Choose the fields for the Main author and Co author

Go to the Abstract Module --> Page Editor --> (Co-)Author Data Page --> Connect Fields To Roles. Select the field you want to see per role.

Select the fields that the Contact person/Main author and Co author need to fill out.

Below you see the fields that the Contact person/Main author needs to fill out.

Below you see the fields that the Co author needs to fill out.

Please select a field and click on the right mouse button to edit the field (change the field name and make it required or not).