In Learning how do you add 'Refine By' types?

[MichaelWright]

Anyone know how to add new 'Refine By' types in Learning?

[MichaelWright]

Actually this is referring to this area: 



But this got me in the ballpark.

So now my question is, why isn't 'Location' a filter showing up on screen when the value is set to 'true'?

[SF-Dan]

This is actually referring to the hard-coded built-in entity classifications: 2386638 - Adding/Removing Learning Type in User Library Search