In V5, how do I leave a message for a colleague in a discussion thread, or add other colleagues?

1. Open the discussion thread where you want to leave a message. If you need to add colleagues to participate, click "Add participants" on the right. 2. Type your message in the "Enter message" field at the bottom. The screen indicates that only colleagues can see this message. 3. As needed, click "Send to..." to select the recipient, then click "Send".