Powershell + office 365

Hello !

I am looking for powershell guys.
I have lot of office365 users ,and i need add/remove calendar items from powershell .
my users have multiple calendars.
how can i select calendar ,and how can i add / remove item to selected calendar.

PS C:\appl\o365calendar> get-mailboxfolder -recurs

Name                                                               FolderPath
----                                                               ----------
Adatt�r teteje                                                     {}
Be�rkezett �zenetek                                                {Be�rkezett �zenetek}
Elk�ld�tt elemek                                                   {Elk�ld�tt elemek}
Feladatok                                                          {Feladatok}
Feljegyz�sek                                                       {Feljegyz�sek}
Kimen levelek                                                     {Kimen levelek}
Lev�lszem�t                                                        {Lev�lszem�t}
Napl�                                                              {Napl�}
Napt�r                                                             {Calendar}
em1                                                                {Calendar, em1}
em2                                                                {Calendar, em2}
fsz1                                                               {Calendar, fsz1}
fsz2                                                               {Calendar, fsz2}

em1 , em2 , fsz1 , fsz2 user created calendars.
thank you
g