ProceduralMeshComponent has no option to modify existing sections!

I want to build it while their collision is off and turn it on only when I want to.
After looking at the source code I can see it saves all the sections in an array which is “private”.
I don’t want to change stuff from the source, I bet there is a good reason it is private.
Is there any way I can toggle the collision of sections on and off at runtime via cpp or blueprint?