Accessing the sleep timers for your Quick Keys with the Pen Display 24 is an easy task.

First, you will want to make sure that Quick Keys are turned on, and you will need to open the Settings panel by pressing the Left Control button on the upper right corner of the Pen Display 24. 

Then you can either select the Quick Keys from the [2] navigation column or [3] select the Quick Keys image from the Device window.

Once you are in the Quick Keys view, [4] click on Customize, and then select [5] Sleep Timer, [6] and then you can select your options for placing the Quick Keys to sleep.