I want to change the properties of current spawned blueprints

How can i do it? For example: When i press F key, ALL ALREADY SPAWNED instances of a blueprint, is to have a property changed.

I’m guessing this will help you along…

I tried this but only the Print String came up, the actual actors in the scene didn’t change, does it have something to do with that integer value on GET?

You are nearly there. What comes out of “Get All Actors Of Class” is an array of actors. You are just picking the first actor, and dont access any others. You will have to use a “ForEachLoop” Node, into which you plug your array. The loop will iterate over all things in the array and you can set simulate physics on each of them.

also please don’t put your title in all caps next time.