How can I access a actor on scene in a blueprint class?

Hi I Am Shubham katta i am new to unreal engine i wanted to know that how can i get access to the actor present in the scene to hide them in run time please help me thank you

Select the actor, open the level blueprint, right click in the graph editor, search for the “make reference to selected actor” (should be at the top), select that node, then drag off the reference node created and search for “set visibility”. Set visibility as desired.