Good to hear you find it helpful! I’m trying to add these little markers every time I add something new while I work. Might become quite a few little bools after a while, though 
A new update was sent to Epic a few days ago, so there will be a few more things to add (marked as 1.42). The update after that will be a bit different, though. As it is an example game it uses its own player controller, AI controller etc. By the way, Epic has fixed the 4.8 bug where “self” nodes get disconnected automatically, so you no longer have to use the casts in Unit_Parent (removing this from the conversion guide now)