Here is where you can compose a Private Message to send to one or more LoP members.
All posting functionalities work while sending a PM (Check the wiki about The Message Box for more information) . The only difference is that you'll find an extra text field on the top for the recipient(s) of your message. You can add more than one member if your separate the names with a coma “ , “.
You'll notice that there is an auto-complete feature active for that. It may help you type the members' names, but can also change the name for something you don't want. Keep an eye on it.
You can also add recipients from your buddy list by clicking the Select from Buddies link (it will open a pop-up with your buddies. You just need to select those you wish to add to the recipients).