I don't believe you can on the dashboard pages themselves, just on an individual feed page if supported.
The Calls platform is the new and shiny system and may be the way you want to shift, which would have a more feature rich dashboard type system that Lindsey has been putting a ton of work into over the past few weeks especially and the interface is looking quite polished. The Console view especially being comparable to the legacy feeds dashboards.
It's a little more involved to set up in areas that still use conventional analog channels vs someplace that's fully using P25, but if someone were willing to supply the Calls system with data, that's the way to go.