how to create calender permission groups for a company and default sharing in organisation as an admin

Question

In short, the aim is for team leaders of teams and their members to be able to see all the calendars of team members.

I would like to know how i can create calender groups with the calenders of some team members which i can add to their outlook.
The members of the group should not only see Busy but also the title of the items in the calendar.

Two questions:

How can such a group be created and members added?
How can the default settings in the calendars be set so that the other people in the company can see the titles and entries and not just busy items?
I hope someone has an answer for my question.

Answer 1

@Samir Menasria

You can set the Manager for mailbox, in this way, those user's calendar will show as a team:

But, it only provide free/busy information, user cannot see detailed information. If you want to let a user could see another user's calendar detailed information, you need to modify the calendar permission.

From the client side:

From server side:
Add-MailboxFolderPermission

---

If the response is helpful, please click "Accept Answer" and upvote it.
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.