Hi Pilou,

> in fact that is very useful when you have for example
> many differents profils on the same plan
> for make some sweep or loft!

When you're using auto-place mode for sweep, you don't actually need to make the profiles evenly spaced, they just have to be in a general left to right order.

The sweep auto-place mechanism will evenly space each profile along the rail no matter exactly how they are spaced in their flat position.

- Michael