Itβs really easy to I have a 16 so it should be about the same. So right from the beginning youβll either do a new post or hit the reply button to go to an existing post. Write your text then at the bottom left of the message thereβs a button to attach files. Go to your photos and select one or you can hit the attach multiple and add several. Then after the photo loads choose insert on the forum picture and choose either full image or thumbnail. Then choose post reply. Weβve all been here one time or another.