Yes. If you have locked jobs that you want to include in your subscription plan, use the “Add this job to your plan” action. This unlocks the job and counts it inside your active job quota, just as if you had created the job after subscribing.
When you add a job to your plan, it behaves like any other subscription job: it stays published as long as your subscription is active.
If your quota is full, you will need to unpublish an existing job before activating another one.