Exclude vulns found only if on a specific port

Is it possible to exclude a vulnerability only if it is for a specific port?
RDP throws a lot of Self-signed cert errors that we are looking to convert to our CA, but until them would like to suppress the vulns until we are ready to start addressing them. The problem is I don’t want to exclude all self-signed certs, just the RDP ones. I don’t see the options to do that in the exclusion, just this asset or all assets.