Using an Animator Controller

I bought this asset off the unity store, Unity Asset Store - The Best Assets for Game Making. And discovered that the animations are controlled via a controller. So after searching frivolously around the internet and reading the documentation (which isn’t great). So what I’m trying to do is sort the animation that the model goes through (via button press say W walk blah blah). Now I’ve literally scoured the internet for any source on how to do this… I have no idea how to use the Animation clip method that the model comes with to animate (if the animations were all separate that would have made my life a lot easier!) I’m using C#. Any helps appreciated.

Found the unity lesson on animators on youtube Animator Scripting - Unity Official Tutorials - YouTube