[Enter description of this extension point.] The class that gets instantiated to represent the action note that this parameter in none-or-one, since sub menus don't have action If the url is set and no class is specified then this action will open a browser at the specified location. If the class is specified, this parameter is ignored. [Enter the first release in which this extension point appears.] [Enter extension point usage example here.] [Enter API information here.] [Enter information about supplied implementation of this extension point.]