Adding a drill to your practice is very easy. Once you create a practice through your dashboard you will notice that the practice will show up on the left hand side of the page anytime that you are on a "Drill" page. If you like the drill and want to add it to a practice you can just click "add" to the corresponding practice and it will automatically be added. All of your practices will be listed so you can add the drill to multiple practices at once if need be. Also, if you know the name of a drill, you can add it directly in while creating the practice.