No, it’s not a referenced point. I’m going to try to explain hoy VisualARQ GH Elements work: Each time you create a VisualARQ element that uses a GH definition, VisualARQ will evaluate the definition to get the resulting geometry. Before the definition is evaluated, all input parameters are filled with the information the user entered in VisualARQ.
Element styles can be created using a input point parameter or not. If you don’t create a input point parameter, the definition needs to create all geometry centered in the (0, 0, 0) position (as the definition cannot know where the geometry will be inserted), and VisualARQ then will move all geometry to the position where the element is inserted. At the contrary, if you specify an input point parameter, as the definition already knows where the geometry needs to be, VisualARQ will just insert the geometry without transforming it.
Specifying an input point is useful if the geometry is dependant on the 3D position. There are very rare cases where this is useful.
I guess you probably don’t need the input point.