If you mean enable the system editor, modify the file PA\media\ui\alpha\system_editor\system_editor.html and uncomment (remove the "<!--" and "-->" parts) the following lines: Code: <!-- <div class="div_back_btn" style="float:right;" data-bind="click: function () { model.selectedMode(model.modes()[1]); }, visible: showControls" > <a href="#">SYSTEM EDITOR</a> </div> --> Code: <!--<div class="div_back_btn" style="float:right;" data-bind="click: function () { model.selectedMode(model.modes()[0]); }, visible: showControls" > <a href="#">PLANET EDITOR</a> </div> -->