Allow multiple-record custom field sets on the summary tab
Traditionally, multi-record custom field sets were only allowed on their own tab, not on the summary tab. However, I'm pretty sure this is a holdover from the pre-Civi 4.5 days, when inline editing was introduced. With inline editing, I think it's time for us to rethink this.
The one objection I can think of is that the fields won't be editable on the "Edit Contact" screen - but I feel like with Contact Layout Editor now, and afform later, we've already accepted that the summary tab and the "Edit Contact" screen aren't going to line up 1-to-1.
Thoughts? I had a client request I was going to implement as a block in Contact Layout Editor, but it occurs to me that this probably belongs in core.