I played around with with the Here-strings and I can see how that might be a good idea, however after reading up Quoting Rules
https://learn.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/about_quoting_rules?view=powershell-7.4

I found out the the back-tick or ` can be used ...

I ended up getting it working using a Filebot args file (as per your suggestion) and adding relevant parameters in there, looking like this:

filebot_folderchanges_args.txt
-script
fn:amc
X:\_Downloads\Complete
--output
X:\
--def
movieFormat={n =~ /UFC/ ? 'UFC'/n.sortName() : 'Movies'/n.sortName ...

Hi rednoah, shout out from Melbourne, Australia. Love your product and have been using it forever.

I am a registered user running FileBot v.5.1.1 on a Windows 2019 Server.

I have had a problem for a while that I am not entirely sure how to fix, couldn't fix a solution in the forum, so here we go ...