Meetings popup reminder for all users

Hi,
I have installed SuiteCRM version 7.6. I have added two users and I want a feature, wherein if any one of the users creates a meeting (in the meetings module), then both users should receive a notification popup at the scheduled time.
Also, I want to remove all features related to invitees. So when creating a new meeting, the user sould not be able to view the option to add invitees, or schedule Email reminders for invitees.

Thanks in advance