# Collaborating

> Invite people to a cluster as an editor or a viewer, by email or with a link. Collaboration is free on every plan — an editor does not need a paid account, and there is no seat count. Cards and storage always count against the cluster owner's quota, not the person who added them.

_Source: https://clusters.soleilpictures.com/docs/collaborate · Updated 2026-08-08_

Collaboration is deliberately not a paid feature. Inviting people is how boards
become useful, and charging per seat would make the product worse at the thing
it is for.

## Roles

| Role | Can |
|---|---|
| **Owner** | Everything, including deleting the cluster and managing shares |
| **Editor** | Add, change and remove content; comment; invite if permitted |
| **Viewer** | Open, read, and [vote](/docs/canvas/vote-cards) — nothing else |
| **Workspace member** | Access granted at the workspace level rather than per board |

Editors are **free on every plan**. A free-tier account can be an editor on any
cluster it is invited to, with no restriction on what it can do there.

## Whose quota

Always the **cluster owner's**.

Cards added to someone else's cluster count against their
[card allowance](/docs/canvas/cards); files uploaded there use their
[storage](/docs/files). This is what makes free editors workable: the person who
owns the work pays for it, and inviting help costs nothing extra.

## Inviting

**Share** on any cluster opens the dialog. Two mechanisms:

- **By email** — name a person and a role. They get an invitation.
- **By link** — a URL carrying a role, which grants that access to whoever opens it and confirms.

Also in the dialog: current workspace members, existing per-board shares, and
[public links](/docs/collaborate/sharing) — which are a different thing, and
always view-only.

## Workspaces

Access can be granted at the [workspace](/docs/concepts) level instead of per
board, which is the right shape for a team that works together continuously
rather than on one project.

Clusters shared with you appear under **Shared with me** in the sidebar, grouped
by whose workspace they came from.

## What collaboration looks like in use

- **[Presence](/docs/collaborate/presence)** — live cursors, who is here, jump to where someone is
- **[Comments](/docs/collaborate/comments)** — anchored to a card, a group, a point, or a text range
- **[Messages](/docs/collaborate/messages)** — direct and group conversations with anyone you share a board with
- **[Notifications](/docs/collaborate/notifications)** — mentions, replies, invitations

Everything is real time. Two people can move cards on the same canvas, type in
the same [note](/docs/canvas/notes), or write in the same
[document](/docs/documents) at once, and edits merge rather than overwriting.

## Undoing someone else's change

`⌘Z` undoes **your own** edits only. To reverse a collaborator's work, use
version history or workspace recovery — see
[Trash and recovery](/docs/clusters/trash-and-recovery).