add: else if (downloadViewController.isCommandEnabled('cmd_showinshell')) goDoCommand('cmd_showinshell'); 
context: function onTrigger() {  if (downloadViewController.isCommandEnabled('cmd_properties'))    goDoCommand('cmd_properties');  else if (downloadViewController.isCommandEnabled('cmd_openfile'))    goDoCommand('cmd_openfile');}
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/78889287f9dc61502d43d68776e97aa3e7013841/downloadmanager.js/clean/xpfe/components/download-manager/resources/downloadmanager.js