Use Add Pin and Threads

Overview

Pins are anchored annotations you can place directly on a 3D model, document, or whiteboard. Each pin opens a Thread — a conversation tied to that exact location. Use pins and threads to give contextual feedback, ask questions, and track decisions without losing context.

Steps — adding a pin

1. Open a space and go to the 3D Canvas, Documents, or Whiteboard tab.
2. Double-click anywhere on the model, document, or canvas to place a pin. (You can also select the Add Pin tool from the left toolbar and then click to place.)
3. A thread panel opens on the right side of the screen.
4. Type your comment in the text field and press Enter or click the send button to post the first message.
5. The pin appears at the location you clicked, with a numbered indicator.

Steps — viewing and replying to threads

1. Click any existing pin on the canvas to open its thread panel.
2. Read the existing messages in the thread.
3. Type a reply in the text field at the bottom and press Enter to send.
4. To close the thread panel, click anywhere outside it or press Escape.

Steps — managing threads

1. Click the Threads panel in the left sidebar to see a list of all threads in the current tab.
2. Click any thread in the list to jump to its pin and open the conversation.
3. To resolve a thread, open it and click the checkmark / Resolve button. Resolved threads are hidden from the canvas but remain accessible via the Threads panel filter.
4. To delete a pin and its thread, open the thread and click the trash / delete icon.

Additional details

• Pins are numbered sequentially per tab (3D Canvas, Documents, Whiteboard each have their own sequence).
• Threads support @mentions — type @ followed by a collaborator's name to notify them.
• All collaborators with at least Can Comment permission can add pins and reply to threads.
• Resolved threads can be viewed by switching the Threads panel filter to show resolved items.
• Double-click behaviour can be changed in User Preferences — set it to Zoom To instead of Add Pin if you prefer.

Troubleshooting

• If double-clicking does not place a pin, check your User Preferences — the double-click action may be set to Zoom To instead of Add Pin.
• If you cannot add a pin, check that your permission level is at least Can Comment.
• If a pin is not visible on the canvas, check the Threads panel — it may be on a different page of a document or a different whiteboard board.

Related articles

• Threads overview
• Chat in a space
• Understand permission levels
• User Preferences