To add a picture(s), underneath where you type your message you will see icons and below that you will see where it says Additional Options, in that box you will see where it says Manage Attachments, click on that and then you will have a box pop up, click on browse, and find where the pic is in your computer then after you add 1 or 4 at a time click on upload. Give it a sec for them to upload depending on how many you have and then close the window. Then wether you type anything or just put the 
pic(s) on here, click submit reply. May sound complicated but very easy once you get the hang of it. And sorry if it sounds confusing, someone may tell you an easier way! And by the way Welcome to YT!
