i want to manually select a point on a spline (line) and refine the spline exactly there. The selected point is even select and i can move it away. Should work like adding new polygons: hold shift and move the polygon. But i don't think i get it running like: hold shift > move knot > spline will be extended. So a maxscript button would be fine.
My problem: i can get the selected points position, but not its segment. And the only function for refining is refineSegment() and it needs the selected segment as parameter. I don't want to select the segment first. I know the mostly a point can have 2 segments..but besides that: how can i solve that problem? I have no idea.