Boots:

I was hoping someone with more savvy than I would jump in on this post.
For me, I would like a bit more info.
- What style and tempo are you using?
- What version (year) of BIAB are you using?
- Do you have the complete set of Pedal Steel "soloist" RealTracks?
(not sure I have them all but my list shows 30, some sw, some ev, various tempos)

First, save your file to say, "whateverthefilenameis_01) so that you preserve your original.
Say you want the steel playing on the soloist track.
I would just right click in the instrument area of the mixer (not on the track name),
and choose "Select RealTracks" and "Select RealTracks" again.

That should give you the list of all your RealTracks. Make sure they're sorted by name.
Scroll down the list to the ones starting with "Pedal Steel, Soloist ..."
Pick one from the list that is somewhat close to your style (say sw, or ev) and tempo

Then just "Generate Track" ignoring the fact that you may want the steel player to play just the ending.
Keep regenerating until you get something you like plus
Keep trying different RTs
Also, don't forget you can right click (say) the last bar and choose Song Settings.
There's options there to "Generate 2 bar endings" etc.

There's other methods to generate a series of RTs over specific bars if that's what you're after.
Let us know how you make out and if you need more help.

Good luck!
LLOYD S