Why can I not run a "Find String" in the background?

What a horrible, tooth-grinding slow experience is waiting for "Find String"
to finish while I am forced to stare at the dopey progress bar. I would not
mind the slowness of it if I did not have to WATCH it the whole time.

I'm attempting to search a filter that contains a smattering of members from
various disparate libraries on a single i by right-click the filter then
Find String. In this case it searches one member at a time while forcing me
to watch. I scanned the archives and I realize this is a painfully slow,
shoot-me-in-the-head method for searching and yes I am aware of several
alternatives, none of which are quite what I need.

I can't seem to find a single setting (of the millions available) that
allows it to run "unattended" and tell me when it is finished (i.e. get out
of my face, do search, bring the search results to the foreground when done,
much like the super-annoying error list comes to the foreground and steals
focus after a batch compile -- still to this day it does that). Seems odd
that I can compile in batch and do other things in batch while still working
on my source, but Find String sits in my face for (sometimes) up to 45
minutes while preventing me from using Rational at all for anything else the
whole time.

Anyone have a trick for enabling the continuation of actual work while the
search progresses? I've searched the help and the web to no avail --
perhaps it is truly impossible. Of course, searching for terms like these
result in far too many hits to actually read them all.

I suppose I could start another instance of Rational just for searching.

I'm running IBM Rational Developer for Power Systems Software 7.5.0.

Stu