Contact Model Based on Event WhoId (for Account View)

One other thing, which is somewhat of a separate issue, but will still cause me issues is the functionality of the field editors in the pop-up. For whatever reason, I’m only able to see Field Editors that are of the Event model:

In the above screenshot there are 3 field editors, with the Models as Events, Account, Events. None of the sections/columns/fields seem to appear in non-Events model Field Editors, but the save/cancel buttons will display.

I’ve never seen this before and am wondering if this has to do with the fact that the pop-up is Events model data only, and the only way to look up Account (or ideally in this case, Contact) data is using this method?

Does that make sense?