Begin a vertical group with a toggle to enable or disable all the controls within at once.

	// C# Example
	// Simple script that lets you align GameObjects 
	// positionrotationscale wise with the selected active transform
	
	using UnityEngine;
	using UnityEditor;
	
	public class Aligner : EditorWindow {
		bool[] pos = new bool[3] { true, true, true };
		bool[] rot = new bool[3] { true, true, true };
		bool[] scale = new bool[3] { true, true, true };
	
		bool posGroupEnabled = true;
		bool rotGroupEnabled = true;
		bool scaleGroupEnabled = false;
	
		void OnGUI() {
			posGroupEnabled = EditorGUILayout.BeginToggleGroup("Align position", posGroupEnabled);
				pos[0] = EditorGUILayout.Toggle("x", pos[0]);
				pos[1] = EditorGUILayout.Toggle("y", pos[1]);
				pos[2] = EditorGUILayout.Toggle("z", pos[2]);
			EditorGUILayout.EndToggleGroup();
	
			rotGroupEnabled = EditorGUILayout.BeginToggleGroup("Align rotation", rotGroupEnabled);
				rot[0] = EditorGUILayout.Toggle("x", rot[0]);
				rot[1] = EditorGUILayout.Toggle("y", rot[1]);
				rot[2] = EditorGUILayout.Toggle("z", rot[2]);
			EditorGUILayout.EndToggleGroup();
	
			scaleGroupEnabled = EditorGUILayout.BeginToggleGroup("Align scale", scaleGroupEnabled);
				scale[0] = EditorGUILayout.Toggle("x", scale[0]);
				scale[1] = EditorGUILayout.Toggle("y", scale[1]);
				scale[2] = EditorGUILayout.Toggle("z", scale[2]);
			EditorGUILayout.EndToggleGroup();
	
			GUILayout.Space(30);
			if (GUILayout.Button("Align!"))
				Align();
		}
	
		void Align() {
			Transform[] transforms = Selection.transforms;
			Transform activeTransform = Selection.activeTransform;
			if (transforms.Length < 2) {
				Debug.LogWarning("Aligner: select at least two objects.");
				return;
			}
			for (int i = 0; i < transforms.Length; i++) {
				if (posGroupEnabled) {
					Vector3 newPos;
					newPos.x = pos[0] ? 
						activeTransform.position.x : transforms[i].position.x;
					newPos.y = pos[1] ? 
						activeTransform.position.y : transforms[i].position.y;
					newPos.z = pos[2] ? 
						activeTransform.position.z : transforms[i].position.z;
					transforms[i].position = newPos;
				}
				if (rotGroupEnabled) {
					Vector3 newRot;
					newRot.x = rot[0] ? 
						activeTransform.rotation.eulerAngles.x : transforms[i].rotation.eulerAngles.x;
					newRot.y = rot[1] ? 
						activeTransform.rotation.eulerAngles.y : transforms[i].rotation.eulerAngles.y;
					newRot.z = rot[2] ? 
						activeTransform.rotation.eulerAngles.z : transforms[i].rotation.eulerAngles.z;
					transforms[i].rotation = Quaternion.Euler(newRot);
				}
				if (scaleGroupEnabled) {
					Vector3 newScale;
					newScale.x = scale[0] ? 
						activeTransform.localScale.x : transforms[i].localScale.x;
					newScale.y = scale[1] ? 
						activeTransform.localScale.y : transforms[i].localScale.y;
					newScale.z = scale[2] ? 
						activeTransform.localScale.z : transforms[i].localScale.z;
					transforms[i].localScale = newScale;
				}
			}
		}
	
		[MenuItem("Examples/Position-Rotation-Scale Aligner")]
		static void Init() {
			Aligner window = (Aligner)EditorWindow.GetWindow(typeof(Aligner));
			window.Show();
		}
	}