Calendar Sync'ing - Email and calendar - Office 365

Hi there, am looking for help if possible please, as I get a little confused.

I'm sure what I'm looking at doing is pretty simple, I just can't find what I'm looking for.

I am wanting to synchronise the calendars at our work.

I am wanting to set it up so that I (as admin) can see everyones calendar in our organisation and I can modify everyones calendar in the organisation, the changes that I make on my colleagues calendar will obviously be altered on their calendar.

All other users can see and modify their own calendar and make changes to their own calendar.

Any changes they make will automatically be updated on my calendar that I can see.

Does that make sense?

I hope so, look forward to your help.

First run:

Fire up PowerShell and run the following command…

Set-ExecutionPolicy RemoteSigned

Select ‘Yes’ on the prompt. This sets the Remote Signed Execution Policy to TRUE.

Next run…

$LiveCred = Get-Credential

You will be asked to authenticate, so input your Office 365 administrative username and password. Next you need to run…

$Session = New-PSSession -ConfigurationName Microsoft.Exchange-ConnectionUri ps.outlook.com/powershell -Credential $LiveCred -Authentication Basic –AllowRedirection

Then;

Import-PSSession $Session

Then for calendar

add-mailboxfolderpermission -identity 'Username/emailaddress you want access to':\calendar -user "your username/email address" -accessrights editor

Change add to set if user already has permissions & reviewer to editor for full