First, don't use the Quick Reply window; it is limited for a quick text reply
Instead use the 'Use Full Editor' option.

In the full reply window, below the text area is a feature called Attachment Manager
This lets you upload screen shots (as long as the file size is not too large).

Last edited by rharv; Yesterday at 02:30 PM.

I do not work here, but the benefits are still awesome
Make your sound your own!