I've never tried it but I know it's possible because the script editor does
it. I haven't looked at the scripts in the editor but if you're ambitious
you could.
If I had to do this myself from a cold start, I think I'd use offset with
its skip parameter to sequentially find occurances of the
Paul:
> It appears Livecode's language has no support for Backwards searching.
These days, for a one-off backward sequential find with no hints,
I'd be tempted to use a "last item of" calculation; short and simple.
> With hints, so it shows you snippets of the matches for you to jump
> to