Select the Timeclock button near the top-right corner of the screen to display the Timeclock:
Within the Timeclock display, select the Gearbox button to manage your Timeclock Categories:
In Manage Timeclock, enter a category name and select either Payable, Non-Payable or n/a. You may also Track Mileage or Archive the new category using the checkboxes. When finished, select the Save icon.
The below video also shows how to add a Timeclock Category: