Yes! Each study schedule is designed to encapsulate a specific goal. If you have different exams that you are studying for, we recommend creating parallel schedules.
One example could be that you have a schedule for the USMLE Step 1 exam with a goal date of 6 months from now, and another study schedule for your midterm block exams which are 2 months from now. As you study every day, you will have a balance between the content.
Also, your study schedules can overlap seamlessly. For example, if the study set "Amino Acids" is in both of your schedules, you will not be asked to review the content twice in the same day. This also means you're free to "manually" study any topic that may overlap with your schedule without "messing up" the schedule. You have total flexibility to study how and when you want.