Blocking 8090 port to one domain

is there a scenario I can access the Cyberpanle through the
panel.xyz.com:8090 ONLY and NOT from xyz.com:8090 or any other website added to the panel…
I mean restrict the access for this port only through one subdomain.
Does that make sense?

Assign said subdomain to your cyberpanel following the instructions in the documents.
You can also remove the port if you want.

And then: