End a group.
Should be attached with GUI.BeginGroup See Also: BeginGroup.
	function OnGUI () {
		// Constrain all drawing to be within a 800x600 pixel area centered on the screen.
		GUI.BeginGroup (new Rect (Screen.width / 2 - 400, Screen.height / 2 - 300, 800, 600));
	
		// Draw a box in the new coordinate space defined by the BeginGroup.
		// Notice how (0,0) has now been moved on-screen
		GUI.Box (new Rect (0,0,800,600),
			"This box is now centered! - here you would put your main menu");
	
		// We need to match all BeginGroup calls with an EndGroup
		GUI.EndGroup ();
	}
        using UnityEngine; using System.Collections;
public class ExampleClass : MonoBehaviour { void OnGUI() { GUI.BeginGroup(new Rect(Screen.width / 2 - 400, Screen.height / 2 - 300, 800, 600)); GUI.Box(new Rect(0, 0, 800, 600), "This box is now centered! - here you would put your main menu"); GUI.EndGroup(); } }