This feature can be used to configure the modules on the menu bar. You will be able to select the list of modules you want to see on menu bar, and rest of the modules can be found under the More dropdown menu.
All active modules in Second CRM are available for selection. Select desired modules from list of modules.
To change the arrangement of the modules, drag them among the other modules and click the Save button. Then, refresh your page to see desired items on your menu bar.