How export a macro as an image without starting a new post?

Usually all I do is start my reply, and then Share the macro to the forum which opens another window with a new topic, then I copy the contents of the message and cancel it and paste it into my original reply.

It is a travesty that Safari does not support pasting images - it's a Mac for heavens sake, we were doing GUI stuff while everyone else was still typing text - so I also use an extension of the macro @JMichaelTX referenced that first clicks the Upload button, and then presses return, and then saves the image to a temp file and selects the image file. I have posted it here: