How I pair the actors I have in a level with a variable in player controller and then cast it in a widget menu?

Hi. I have created a player controller in which I configured a variable (camaras nivel), which is an array, because there are more than 10 actors in the main level. I have one button for every camera in a widget menu. I want to pick a specific camera of this variable for get possess by the player controller when I click the button, but I don’t know what to use for that.

I think that I must configure in the player controller an integer variable linked to the “camaras nivel” for pair each actor with a number, and then get that variable when I cast the player controller in the widget menu. But I don’t know how to do and I’m several days with this…