How to communicate between UMG and an other Actor's blueprint?

Development Programming & Scripting Blueprint
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Hi there,

I want to change the material of a Mesh at the touch of a UMG Button, but couldn’t find a way to solve this.

I’ve already found a Set Material BP, that needs a Static Mesh Component, but I couldn’t connect target Actor’s StaticMeshComponent in the UMG blueprint.

Another solution would be if I could set it up( the Set Material BP) in the Actor, tie it to an Event, but I don’t know how to create, and fire up an event in an Actor’s Bluprint from another Blueprint(like a Button’s Graph in UMG).

Any help is highly appreciated.

Thank you.