Launch any app, or bring back the right ctrl key.
You say that it's an 'extra' key, but it's clearly shown replacing the right control key in the layouts HP and Lenovo are using. Moreover, it can't be remapped to actually be right control because it ...
Ctrl + M: Enter Mark mode (allows you to select text with mouse). Once Mark mode is enabled, you can use the arrow keys to move the cursor around. Shift + Up or Down: Move cursor up or down one line ...