Hi Giovanni,
Yes it is possible but the settings to disable some of the menu are scattering all over easysocial backend settings and it's quite difficult to disable some of the menu via quick settings. The easiest way for you to disable or hide it is by manually modify the file here, /components/com_easysocial/themes/wireframe/toolbar/default.profile.php and comment out any menu accordingly.
You can try download my sample attachment below as references where it will hide all menu below the "application" menu as you can see from my screenshot here,
http://screencast.com/t/X0esOifimoD
Hope these help.