Logitech Mouse MX Master 3 Back Button

I want to configure BTT to read the Mouse Back Button to send the keyboard [Command] [

to Evernote. However BTT doesn't detect that mouse button. If I click the button
"Problems with click recognition" https://docs.folivora.ai/docs/normal_mice_problems.html
It's a 404 error!

How can I do this?

In the past I would send an email to the developer, well that doesn't seem to be an answer now.

This is the correct link:

But I don’t know whether this will help with the Mx Master 3