I’m 100% sure they are not ignoring you or whatever. There are a lot of questions asked here. Plus, I know that they try to answer all posts. It just happens that you have four that got through.
I can answer the following one but I don’t have to BP course (only the c++ one) so can’t look up more precisely what you mean. It sounds like they use their own customs functions for that one as well and that’s what you’re talking about but I’m not sure.