In reply to sarth21:
Doing something like this might involve restructuring your sequences. You might try a hierarchy of sequences where one sequence calls a series of other sequences.
Another option is creating an array of sequences. You could use a queue and push/pop sequences on/off the queue.
If you come back and tell us you can’t modify the architecture of your test bench, then you’re going to have to give us a lot more information about how it’s currently structured.