Array Question

Hi I need some help please,

I want to create an array of buttons, the buttons are called popupone, popuptwo, popupthree etc.

When the scene is loaded these buttons visibility is set to false so they are invisible. I want to be able to randomly pick one of these buttons from the array and display it to the screen _visible = true.

I’m really not sure how to go about this and really would appreciate some help.