Hi,
I am aware that Web Protocol (HTML/HTTP) script was used to load test the Remedy Web-based user interface for Remedy 7.1.
It required URL-based recording, a lot of correlations and work on the script. Additionally from LR 11.50 patch 1, there is a Remedy DFE that transforms Remedy request data into XML format (KM00230590)
So my suggestion is to try to record the script, check if it will be recorded, what difficulties you will face and if it get recorded to work on the specific issues you will face.
For these specific issues you can ask in the Forums or open a case with Support.
Kind regards,