Oh, it´s elegant solution 
! Thank you.
But, I want something, let´s say “config” file? Where I can set some variables for level 1 with some values and same variables for level 2 with different values.
But i think that this will help to solve my problem.
As I sad, I made light blueprint just for example. I want to use it for control more variables in few blueprints. I will not control lights :).
Thank you!!