Hi Haki Saki,
I am sorry for the late reply for this.For your knowledge, uploads are not separated to groups etc, its just using on single directory/file.If you want to see where the video has been uploaded/saved, you can see it in the directory
/media/com_easysocial/videos . You can double check the directory on back end
Components->EasySocial->Settings->Videos->under
General tab
->Storage Path
You can refer this screen shot :
http://screencast.com/t/glUvQBxZ5h
Hope this helps. Have a nice day