Hi all. Very new to SF, SFDC and Trailhead, so please accept my apologies if this is a 'n00b' question.

I note the trailhead tracker app can allow you to assign badges (like a trailmix i guess) to users, but i cannot find how to do this.
The app is installed and set up, and reports re-configured and running perfectly, but i just cannot see how to assign badges to users.

Any guidance most gratefully received. Thanks.