How to create profile on light support

Documentation says light support can have profile.
But I can’t edit profile. How do can I edit profile on light supports object.

Hello @CinnabarJoker81 Well the doc says
you can’t create point and only the 2 extremity points can be edited. That
said, the interface is very misleading and you seem to no longer be able to
adjust these 2 point’s altitude individually. I’m going to file a bug on this
and have a developer review it. Thank you for reporting this. Regards, Sylvain