So I want this to happen automatically when I copy a list of or individual links with specific text. Specifically, I want to switch out a domain url for another. I wish this:
to become this:

Realizing there's additional info contained within the URL, my regex for the trigger looks like this:
Regex:
Replacement:

No matter what I do, I can't get it to work inside clipboard fusion.

I'd appreciate any help. The regex works fine in my other programs.

Well, this isn't looking very hopeful. Is there a way to directly contact the devs?

I'm trying ClipboardFusion for the first time so this might not be helpful.
But...
I think the The \1\2\3\4 syntax for backreferences in the replacement text is not supported but the $1$2$3$4 is supported when one sets the "Text Match Mode" in the Text Replace dialog to "Regular Expression"

Thanks for that. I just came back here to look for some info, and this is what pointed me to use .net compatible c# regex. All working the way I want in the triggers.

Thanks!