Adding a title (lower 3rd) to multiple clips at once on the timeline?

Say I have a video with lots of different speakers and I need to place a lower on-screen every time they appear. Is it possible to create one lower and have it cover all areas the speaker shows up in the video? I tried using index to select all clips with the speakers name which highlights them all, but pressing Q only places the lower where the playhead is. 

Is there also a way to add a lower to a synchronized or multi-cam clip in the browser?

These are the two ways I thought it may be possible.  

Not the end of the world but I'm still learning FCP and trying to use it's features in new ways. 

You could do it with plain and synchronized clips by creating a Compound clip of the file in the browser, then add the lower third to the comp prior to edit.

For a MultiCam clip, you can make your angles Compound clips w/gfx prior to assembling the Multi.

Both of those ways make sense to me! I was trying to figure out if there was a way to do it after the video has been edited and then a decision was made later to id speakers throughout the full video instead of just once at their first appearance.