Heya EniGmaa,
Thanks for the reply!! 
long story short, yes, i would love too see the c++ code behind that! 
I do see you ‘hook into’ BeginPlay, wondering if thats mandatory for your solution? (ie; do you use NewObject or CreateDefaultSubObject?)
Either way i’d still be very interested, for one i’ve never even seen the USphereComponent’s pop up (from my code anyway) during runtime, and your idea is pretty much 1on1 what i was thinking too, an option to change between different collision shapes, since you got it actually working im gonna just accept that whatever your approach is, thats the way to go, and alter my code accordingly 
And yea, this is for a c++ plugin that creates a bunch of custom bp nodes, so the similarity between what we('re in my case trying to) do is uncanny
Cant wait to hear back from u, feel free to send me a messy or stripped down piece of code if that saves u time, anything that can get me something similar to your screenshots will make my day :o