If you want to change the active port used by a web server application, you can override the default port easily. At the Protocol Selection Menu, select option 2 (http) or option 3 (https), then follow the onscreen prompts.
Web (http) and Secure Web (https) connections will automatically open a new browser tab when accessed at the remote.it web portal.
If you wish to set up a TCP service that is not already defined in the Protocol Selection Menu, choose option 10:
Next, enter the port you wish to use:
Give the new service a name:
Then you will return to the main menu.
Connections to TCP Services made at the remote.it web portal will open a generic dialog with hostname and port.
Continue by scrolling down.