We only needed to capture Contact details for the primary adult, this could be achieved by setting those form fields, under Common in Group Reg., to "Yes, but save only for first registration". In doing so however these fields would be shown at the beginning of the form which we didn't want.
We wanted these fields to be included only for the first registration, so similar to the DateOfBirth filters, these were set to Show only if Line = 1. This setting was also applied to the PICBOX which is explained as part of the Layout solution.
These fields can be set to Always Mandatory still, as they only show for Registration 1 then only this participant requires the data.
