How to make a box appear after pressing a button?

I’m working on an american football game and I’m trying to implement a fantasy draft like in the Madden games. The players are buttons and when I press them, I want the button to disappear and the player name to show up in a different location(kind of like an inventory system). I can make the button disappear but not reappear. Also, I have barely any experience coding. Here’s what I have so far:

private bool justinMiller_Drafted = true;
    if(GUI.Button (new Rect(50,80,100,30),Justin_Miller)){
	justinMiller_Drafted = false;

At least u should define an action to reappear the button right? Should it reappear automatically after a while or after u click the player name, I don’t see it in your questions