Hi Michael,

> For Controlling the twist why not use additional evaluating
> lines like the scaling rail in the sweep command.

It's an interesting idea! But I'm not so sure about using distance to a 3D curve to control something totally different (the angle).

With the scaling rail in the sweep command, the scaling rail has a more direct relation to a distance used in the sweep.

Something like this would probably need more of a 2D curve editor that made a kind of graph of the twist function that you could edit - animation programs tend to have that kind graph editor in them but MoI does not currently have any equivalent of that set up.

- Michael