After you have done this you come to the Screen were you can actually write your message, just like it would be a normal Post on the Forum. If you used on of the first two options described above, the name of the Person that gets the PM is already filled in. Should you use the third option you have to fill it in yourself.
You can also send the same messages to several users at once. For this enter each name in the address line, separated by a semi-colon ;
After finishing writing the PM, simply send it by clicking on “Submit Message”
If you wish you can save a copy of the message you just wrote in you “Send Items” Folder by checking the little marked box on the left.