You can drag and drop the workouts from one day to another if you’d like. This is one of the final steps when creating a custom plan with Plan Builder.
If you already have a plan in place, this can also be done through your calendar at any time. Just click on the phase you’d like to edit (in this case, I’m showing Base 1) and then drag and drop the workouts to wherever you’d like them. You can also edit the duration caps here as well.

