Calendar management
Set availability once. Each client calendar gets a private block, and other clients' titles stay off it. A next step from a note can sit on the calendar as a work block.
Client communication
The client page is what you share outward: what was agreed, what is left, hours against the budget, and an update the client can follow.
Internal communication
Comments, notices, and invites stay inside the studio. A freelancer uses them alone. A small studio hands a project or a week of hours to another person, and they open the same picture.
A ready project
A design engagement, a build, a boutique collection, or an event starts with the work listed. You can then say who is on it: three people, one contractor, these boundaries, this client.