Is there any way to make Favorites Sub folders?

If so how would this be done?

I find adding a bunch of Favorites to the Favorites folder is useful however I guess I like too many styles as I still find it hard to navigate.

A break up like

Country
Rock
Jazz
RnB

Etc would be nice.

Tony

In the "Other'" button at the top of the style picker "Show only FAVORITES" then list the "Genre" column to sort ?