Editing the toolbar

Hi! I want to install an application in my website but not actually open it from the application side-bar. I was wondering if it would be somehow possible to edit the Easy Social toolbar(insert some code etc.) and put an extra icon, right next to the dashboard icon that is a link to my application, in order to access the application from there! I love the idea of a simpler GUI for my website and since I only plan to install just this application for now, I don't want to have an extra application window just sitting there. Also, is it possible to do the same idea but instead of an app, to link the icon to an other Joomla article?
Thanks!