Object tab User Interface (UI) menu options.
In order for mtSplineFX to function, both a start and and object is required.
Drag and drop your polygon, spline or xpEmitter into these lists to create the start and end points.
Set as Origin, by default, select where on the object the start and end points will be generated.
The other options are: Points and Surface.
A single connection made at the center of the object.
With a Connection Type of Origin, connections are generated from the axis points of the start end end objects (the Cube and the Sphere).