I assume you want to put a picture you have on your computer in your response to a thread.
If so:
click the "+ Reply to thread" button
click the "Go Advanced" button, lower right
click the paper clip icon (top row of icons, next to the smiley face -if you hover over it, it should say 'attachments'
click Browse, find your file, then scroll all the way to the right and click the Upload button.
close that window
finish typing, then Submit like you normally would
Don't worry that you don't see the file in your preview, it'll show up once you actually post your reply
I assume you want to put a picture you have on your computer in your response to a thread.
If so:
click the "+ Reply to thread" button
click the "Go Advanced" button, lower right
click the paper clip icon (top row of icons, next to the smiley face -if you hover over it, it should say 'attachments'
click Browse, find your file, then scroll all the way to the right and click the Upload button.
close that window
finish typing, then Submit like you normally would
Don't worry that you don't see the file in your preview, it'll show up once you actually post your reply