Replace existing tunnel in a new one

Hello, I have a tunnel to my Raspberry PI the tunnel name is RPI_NUM_1 and I ssh to it using RPI1.mydomain.com
All is working well.
Now I want to copy my SD card (the RPI OS) to another PI
I want to be able to log in to PI number 2 using the RPI2.mydomain.com but it’s exactly the same OS as PI1 so it connects to the same tunnel
what command do I need to run to remove the old tunnel?
and is there a way to duplicate the tunnel settings to the new one so I would not need to do all that I did to the first tunnel all over again?