ISAPI Path for Linecrossing Mix/Max Object Size

[Pythong]

I went though all the documention for Hikvision ISAPI and cant find the path to define the Minimum and Maximum size of detected object for the smart event LineCrossing.
Does anyone know where this is stored?

I'm currently using the following path to define the coordinates of the line, but it has nothing on object sizes:

http://192.168.x.yyy/ISAPI/Smart/LineDetection/

Thanks