The tab width multiplier.

	guiText.tabSize = 4.0;

using UnityEngine;
using System.Collections;

public class Example : MonoBehaviour {
    void Example() {
        guiText.tabSize = 4.0F;
    }
}

import UnityEngine
import System.Collections

public class Example(MonoBehaviour):

	def Example() as void:
		guiText.tabSize = 4.0F