Overwriting the destination data from source after DR completion

once the planned failover is complete, what steps we have to follow to overwrite the DR data.

1. Source -->  Destination       (Replication is happening as usual)
2. Initiated the Planned failover from source.
3. DR disks are read-write and users can able to access the DR disks (Source disks are readonly).
4. Users created some dummy data as part of the DR test in destination disks to make sure destination disks are accessible.
5. DR activity completed successfully. Now we have to bring the production disk online.

My question is, once the DR activity is completed, we want to overwrite the destination disk. 

I remember in UnityVSA, overwriting the destination disk is only possible via command line.

Any insight willl be really helpful

Thanks