A similar question was asked this year and it seems to me that our favorite @gt22 who gave the answer.
Basically, you make parallel planes and at the junction with the curve you put a point. This point can be dimensioned in XY on the sketch of each plane. This solution has the advantage of also working with a 3D spline.
From memory, there is no native function to do this in SW, unlike autocad according to your words!
Kind regards
EDIT I found the solutions already proposed by @acombier @gt22 and @Olivier42 https://www.lynkoa.com/forum/solidworks/macro-pour-trac%C3%A9-de-courbe
There is no basic function in SolidWorks to place a sketch point on a spline by the data of its x-axis. However, there is a possibility by using the function of inserting a reference point.
Once the spline is created and its sketch closed: - menu Insert> Reference geometry > Point... - Select the spline; - select the button of the last option in the list (Distance along the curve...).
The associated function offers 3 options, including the "Distance" which is none other than the abscissa of the point (see image attached).
The method also works for other types of curves, including 3D splines.