Hovering mouse on the pins would tell you what it is.
Well, I just started with Unreal and I am seeing a professional and cool tool! Regarding blueprints, I just find that it is very easy to make it a mess while, to my eyes, the vertical sense helps on this. Maybe I’m biased because of working this way for many years. But, I will focus on ways to properly organize with the current system, that has its pros-cons. Let’s see.
Thanks for the tips 