Add Staff or Contacts to Location Detail Page

I’m wanting to add an option so that one or two staff or contacts can be listed in addition to the general contact information. I’d like it to include name, position, and contact option (most likely email address).

I realize that I can do this with three separate custom fields, but I’m wondering if there’s a way to create it as one “field”. Ideally, I’d like all of the addition staff/contacts to appear in one tab, but if I have to use multiple fields, then it’ll break it into multiple tabs.

Any ideas? Thanks so much!