I’ve got the same need to copy variables from blueprint to blueprint.
In my case the blueprints have already been created long ago. I just need to add color variables on all interface blueprints for the coders to change the interface color as the players having bought a certain dlc for the game will have a slightly different UI.
I’m doing that manually right now but have hundreds of blueprints to add the same variables to… it’s a huge timesink considering we have only 2 week to revamp the whole interface.
If, in any case, a solution for this issue is now available in UE 4.16 and someone knows about it, my sanity would be very thankful !