Enhance the how the Containing text field in filefind works

I often need to find text in source files using the FindFile dialog/pane of DO.
In that case, most of the time I need to look for occurrences of that text in each file.

Sadly, when I view each file of the Find Results list with the internal viewer, and hit F3 to look for the text, I have to type in the text I was looking for again & again.

A REALLY great enhancement would be to prefill this Find dialog in the viewer with the string the user looked for in the FindFile panel. That would be most helpful.