void OnGUI() {
			EditorGUILayout.Space();
			m.OnGUI();
			EditorGUILayout.Space();
			if(GUILayout.Button("roll")) {
				m.Roll();
			}
		}
		void OnGUI() {
			EditorGUILayout.Space();
			m.OnGUI();

			EditorGUILayout.Space();
			if(GUILayout.Button("roll")) {
				m.Roll();
			}

			if(GUI.changed) {
				EditorUtility.SetDirty(m);
			}
		}