Custom "no backlinks found" message in Backlinks pane

Use case or problem

What I have now when using multiple backlinks panes:

It’s very hard to know at a glance which backlinks pane shows what. Hmmm, is the top-right for meetings, or people? Checking the query, which sometimes may be long (like in the top-right), is tedious.

Proposed solution

Custom messages for backlinks panes.

Current workaround (optional)

Related feature requests (optional)

Can anyone help me with this?