Hey @dreamoka ! There is a Solace PubSub+ feature you can leverage to dynamically change the URL; check out the Substitution Expression section in the docs. You can also check out @Aaron 's office hours where he talks about this in details here
Basically under the queue binding settings, you can change the “Request Target Evaluation” to substitution expression and in the “Post Request Target” you can leverage the expressions defined in the docs to customize the end point.
Hopefully this answers your questions and give you some hints on the powers of RDP