Let me try some of this and see if I have got it.
This is using the Reduce Images online and the paperclip icon on the tool bar.
Now for the video.
Foot pedal modified for hand control in action
I posted the video on my YouTube, made it available only to someone who has the link then using the link icon on the tool bar posted the link in the message.
Then I copied this message with image attached and link and sent it as a Private Message. It looked ok in preview but the proof will be if it transmits.