Family Historian User Group

Add a option like show Individual ID in preferences, but turns on family ID in front of marriage line on focus window.

See related threads Displaying Marriage ID (12562) and Add family ID to Focus Window (12580).

Actually the Tools > Preferences > Focus Window option is to show Record Ids so it could be deemed a bug that the Family Record Id is not shown on the Marriage line, and that should be reported to Calico Pie.

I have logged support request [#698844] Focus Window Family Record Id with Calico Pie.