Menu options
From OpenKM Documentation
Menu options feature allow to set toolbar menu options what open popup with external url and passing as parameter uuid of the object selected ( document, mail, folder or record ).
Configuration
There's a configuration property at Administration / Configuration called extended.toolbar.menu. Each row indicate an url couple of values the format is: name,url,width, heigh
Example
menu1; http://www.openkm.com;500;500 menu2; http://www.openkm.com;700;700 menu3; http://www.wiki.openkm.com;900;300 menu4; http://www.forum.openkm.com;500;900