How to create a C++ struct that behaves similarly in Blueprint to Vector with inlined textboxes like "X:[0.0] Y[0.0] Z[0.0]"?

Great! Oddly enough that exact solution didn’t work (5.2, Windows) but tweaking it just slightly did!

void SGraphPinSomeStruct::Construct(const FArguments& InArgs, UEdGraphPin* InGraphPinObj)
{
	SGraphPin::Construct(SGraphPin::FArguments(), InGraphPinObj);
	
	FSomeStruct DefaultValue;
	DefaultValue.Str = "abcd";
	DefaultValue.Int = 12;

	if(GraphPinObj->DoesDefaultValueMatchAutogenerated())
	{
		GraphPinObj->GetSchema()->TrySetDefaultValue(*GraphPinObj, LexToString(DefaultValue));
	}
}

Thanks again for the help! Learning this system has been a process, but quite fun in its own masochistic way.