Hi Jessi Lewis. If you are not currently in a program, you are able to schedule a program for a date in the future. To do this, select "Join Program" for the one you wish to join. And then choose the date you want to start.

However, if you are currently enrolled in a program, that program has to complete before you join a new program. This is a modification Grokker is looking to make in the future, but as of now, there is a limit of only being able to join one program at a time (even if the 2nd program is in the future).