1. Before you are going to turn power off, press the "sequence" button to halt the sequence. Do this while it is moving between sectionsd. (The DSS1 still has the loco, but it is halted)
2. Power off
3. Power back on some time later (The DSS1 gets control of the loco again, but still halted)
4. Long press the "sequence" button, and the sequence restarts with the loco travelling in the same direction and speed as previously.

Done this way, the LocoShuttle can be used to keep a loco operating its sequence across many operating sessions.