Spline problem

[stigma]

I have this spline problem.
1 - A cart goes from A to B, no problem.
2 - To return, it uses another spline to go from B to A, no problem.
The problem arises that it has to redo maneuver 1. It does not move because the Time value is 30 and I cannot find how to start part 1 with a value of zero using the "Set Property"

[djaydino]

There might be a 'Reset' method, since it has a reset button

[stigma]

I did not find
I should use a single spline but Start Offset doesn't work on read. It appears to be a known bug.