Rename RDP entries in Jump List
Solution 1:
There is a really simple answer.
Use the "save as" button when you first configure the RDP session and use a name that has some meaning. Then "name.rdp" will appear in the recent list.
Solution 2:
The items that appear in the jump list are just what you have typed in to connect to a PC.
What you may be able to do is create some custom entries in your hosts file (found in %systemroot%\system32\drivers\etc\)
Open the file with note pad and add entries in the form of:
192.168.1.100 Workbench
192.168.1.110 MyDesk
After a restart you should be able to connect to the server using what you called it in the host file. Simply clear out the old entries in the Jump List and you should be golden.