How to enable backup stg proc just after data is migrated to tapes?

Hello,

I have several monthly archive schedules on tsm 6.3, all go to a large slow disk pool. That information must be on disk 31 days, after that a migration process sends all data to a tapepool, how to enable the backup stg (tapepool) process just after migration proc finish?

I enabled migration procees every sunday at 8pm (sometimes there are special archive schedules during the month)

I enabled migration delay for 31 days and migration continue off.

Thanks in advance!