Thank you for this. i am still having trouble though. is the current room node an actor reference? i can connect set current room but cannot connect get current room in any of the examples. if i change it from an actor reference then i cannot connect the set current actor node. by promoting the target pin from number of doors, (which becomes spawn room 01 object reference), i get an error ’ accessed none trying to read property newvar’. i also cannot connect a set newvar node to spawn actor. i have four spawn room BPs, one is randomly selected and spawned and then i am trying to tell the engine which room has been spawned so it knows how many doors to spawn. i have got the transform sorted for all of the doors but have been unable to tell the engine which room has spawned. i am only using true or false for the first room to practice, e.g. if room01 spawn one door if not spawn 2 doors.