Purge saved exports from MLCL in CCW from ModailityTransfer folder in CCW.

Currently export exams from a MacLab/CardioLab drop into the modalitytransfer folder in CCW. After they're processed by CCW, they go into a "Save" folder indefinitely. Customers with large case loads are concerned with storage requirements for the long-term. We'd like to see a 30 day retention of exams staying in the "save" folder. Everything over 30 days could be purged. Could this be included in a nightly maintenance procuedure?