I have a Curve object with two Splines and I want to use the Sample Curve node in conjunction with the Set Position Node to move the curve points. But with two splines all points are mapped to the first. Is there a way to get the Curve Index to which the control point belongs to feed that into the Sample Curve node?

Or other how do I find out what Spline the point belongs to / its parent's spline index?

Thanks for helping.