Welcome to the community, Matt! :slightly_smiling_face: Unfortunately Airtable filters can’t act based on group size. They only act based on field content.
To do what you want will require you to manually mark another field with an indicator (a number, a check in a box, etc) of whether or not you want to include that record in the export/print. Then switch to a different view to filter out un-checked/unmarked records (or alter the current view, although keeping a separate view just to export/print may be cleaner).