Impossible to edit some properties if I create StaticMesh in C++

I have created 2 spheres, each of which has its own radius to detect collision, but only one of them can work(because of auto weld, which i have read in the answer hub). So I need to change this property but it is impossible with c++, I at least I can not find the way to do this.

https://forums.unrealengine.com/development-discussion/c-gameplay-programming/1733705-bautoweld-is-not-accessible-in-c-but-in-bp-it-is-ether-disabled-or-absent

I greatly appreciate you help!

Could you post the code snippet as your URL is not accesible?

Link
Sure, that’s the same but in forum with pictures and some more descriptions