Hi Armin,
Moi's loft works a bit different. Sounds like you may have been refering to "revolve", with a spline with a number of points to pull around.

With Moi's "loft" tool, there is a history enabled that will allow you to adjust the input curves "after the loft" has happend to further define the shape.

So here is a picture of a loft with 4 shapes.



I can move or rotate any of theose shapes and the loft will update to reflect the new shape. I can also turn on control points for the curves and further adjust with point pulling if I want.





Basically can adjust this shape in any manner/direction i feel I need to.