if (!isEntityGroupSelected) {
manager.add(new Separator("open")); //$NON-NLS-1$
/* Show only when internal browser is used */
if (!selection.isEmpty() && !fGlobalPreferences.getBoolean(DefaultPreferences.USE_CUSTOM_EXTERNAL_BROWSER) && !fGlobalPreferences.getBoolean(DefaultPreferences.USE_DEFAULT_EXTERNAL_BROWSER))
manager.add(new OpenInExternalBrowserAction(selection));
}
/* Attachments */
{
ApplicationActionBarAdvisor.fillAttachmentsMenu(manager, selection, new SameShellProvider(fViewer.getTree().getShell()), false);