indexmenu_contextmenu['all']['pg']['view'][0] = ['Custom Title'];

indexmenu_contextmenu['all']['pg']['view'].splice(

  3, 
  0, 
  ['Input new page', '"javascript: IndexmenuContextmenu.reqpage(\'"+index.config.urlbase+"\',\'"+index.config.sepchar+"\',\'"+node.dokuid+"\');"']

);