If we already created a lofted part like in the picture.
In the design tree we can see that this loft consists of 4 profiles.
If we want to add a new profile for a loft or we want to see an existing profile somewhere in between the existing profiles this is what we have to do.
We right click on the part and the window appears where we click on the add loft section. Than we get a preview like on the picture. The property manager on our left side is already showing us the 4 profiles that we used for this feature. On the part you can see a plane
This plane can be moved up and down. And every time you move it you can see a sketch of the profile.
You can also rotate a plane.
You can also check the check box in the property manager saying use selected plane.
If we select a plane that we placed on the location that we want we will get a sketch of the profile on that place
Like in the picture.
If we edit this picture,
And we change it,
We get something like this.