Here are two ways to initiate a Private Message, also known by its initials, a PM.
Click your Avatar (the round colored circle with either a letter or your profile picture), then click the envelope icon that appears below your Avatar. This takes you to the Message area where you can initiate a new Message. Click New Message and proceed. Note: You’ll notice a light green palette on your screen surrounding PM’s. This helps you to know that these are differentiated from publicly viewable posts displayed to all within the forum.
Use the Keyboard Shortcut “g,m” as shown below: