Submenu for Strum Direction


I would like to suggest a feature to give more control over strum directions,
My first idea was to make a submenu on strum Alternate option, like

|Alternate   |  Down, Up, Down, Up   |
             |  Down, Down, Up, Down |
             |  Down, Up, Down, Down |
             |  Down, Down, Down, Up |
             |  Up, Down, Up, Down   |

Or even Better, if you can assign a key to change strum direction.

Thanks !