Logged-in members can send a message to another member or a list of members and establish a conversation with them.
To send a private message, go to the person’s profile by clicking on any high-lighted occurrence of their ‘handle’ (name – boat) and then select Private Message.
Alternatively, if you know the member’s user name (the string after the @ character close right of their profile picture), you can compose the message from your profile menu top right, going to profile>Messages>Compose.
You can send a message to two or more people at once – enter the user names separated by commas. This starts a trialogue or whatever, and any replies are sent to all participants forming a private discussion.
[Private messages could also be seen by the administrator, so are not strictly private.]