public void DrawFooter() { GUILayout.BeginHorizontal(); GUILayout.Label("", GUILayout.ExpandWidth(true)); if (oldManeuvers.Count > 0 && oldManeuvers[0].UT > Planetarium.GetUniversalTime()) { if (GUILayout.Button("Undo", GUILayout.Width(70))) { UndoSplit(); ResetWindow(); } } else { GUILayout.Label(" ", GUILayout.Width(70)); } if (GUILayout.Button("Apply", GUILayout.Width(70))) { currentSplitter.SplitNode(); } GUILayout.EndHorizontal(); }