Object Matrix has developed move2 to move data forwards and backwards from MatrixStore to S3/LTO libraries etc.
move2 consists of a background service and a user interface.
move2 Service listens to request for sending/receiving data from/to MatrixStore vaults to/from archive systems. It is an evolution of LTO Plugin, which was deprecated for 3.1 servers.
move2 user interface allows to schedule jobs to monitor MatrixStore vaults and move data to deep archive according to policies. This interfaces is an evolution of WatchSpot.
You can find move2 installation and user guide here:
https://support.object-matrix.com/support/solutions/articles/4000177489-move2-v4-2-user-guide
You can download move2 from the Downloads area.