To adjust snare hits: Choose an option from the Snare pop-up menu.
To add percussion, such as a tambourine, shaker, or claps: Choose an option from the Percussion pop-up menu.
To control the degree to which the hi-hat is opened and closed during the drum performance: Choose an option from the Hi-Hat pop-up menu.
To set the cymbal sounds: Choose an option from the Cymbals pop-up menu.
To control which toms are played: Choose an option from the Toms pop-up menu.
Note: The pop-up menus for the hi-hats, cymbals, and toms appear only when you choose the respective kit piece in the Main view.
In Logic Pro, click the Details button in the Session Player Editor, then do any of the following:
Control Surfaces Support Guide: PDF