Transferring variables between blueprints.

I hope I’m not hijacking this thread, but I figured if someone’s having a very similar issue as me, I don’t need to make an extra one.

Basically, I’ve gleefully stolen someone else’s blueprint example to create a grid array of vectors, which then spawns a static mesh at each point in the array. Fine and dandy, but I’d like other actors to be able to reference this array so that they can move to certain indexes, or place objects there, etc. How would I go about referencing this array in other actors?

Thanks