Right-click on the tab and select "Change name" to edit the name of the tab.
Enter a new name into the empty space. Click "OK" to accept.
Duplicate tab
You can duplicate your tab by clicking on the "Duplicate option" in tab context menu. The duplicated tab will be exactly the same (besides the name) as original one.
Switching data connection
Right-click on the tab and select "Switch data connection" to change data connection for an individual tab.
Select one of the existing data connections. Click "Use selected" to accept.