Monsgeek Driver

Question

I have a Monsgeek MW1. I would like to know how to use the Monsgeek Driver to set the "e" key so that when I press ALT+e it returns: é.

I tried the following:

1. Open Monsgeek Driver > Main
2. Click on E key
3. In combination, click on Alt
4. In the dialogue box, I tried to enter é. But I don't see how to do this.
   A. Cut and paste does not work.
   B. The keyboard icon next to the dialogue box has a very limited list of characters and é is not listed.