Hey,
i need to know how to export Level BP because i want transfer it to another projects.
Can u help me? 
theres two ways i can think of that may work. first you could migrate the level from one project to the other. second you could just select everynode in the level bp then copy it and paste it in the other project. this option wont copy certain nodes so you will have to fix some things like variables and possibly custom events.
I will try and let know how it went