Ability to choose, sort by favourite card-sets

[Ygarr]

For fast access of gaming appearance.

As a case. e.g.: Ability to create in card-set tree - "Favourite folder"

• then drag'n'drop(or another way: to add by right button click menu on card-sets name chosen by you in existing card-sets tree).

[cardset]

I'd like to have this function too