experience in adding new retail label report designs?

Hello friends,

Does anyone of you have experience in adding new retail label report designs? I would like to know how you can add the new design in shelf label reports form (first screenshot). The form has one main datasource RetailInventItemLabelReportSetup so I think you should be able to somehow add the report in this table (second screenshot). It would be nice if you could share some experience in this.

Best regards,

Roberts