I wonder, if there is any possibility to add a parameter in the middle of beam family, which control it's curve? I want middle of my beam, to be 3-5 cms higher than start and end point. Creating beam from a sweep line, in the project enviroment isn't good solution for me.

Sweep seems to do not allow me to lock it's start and end point and adding parameter in the middle.

I would be thankful for any tips.