Use clear_value to cancel the override. It will return to whatever the value was before it was changed with set_value.

Shuttle dial sequence is in the driver source, so: 0, 1, 3, 2, 0, 1, 3, 2, etc.
and to rotate the other way, go in reverse: 2, 3, 1, 0, 2, 3, 1, 0, etc.
Add a short pause between each value.

Before set_value, do a read() on 0x18 and set the starting value to that, so the value after a rotation is unchanged after clear_value.