Paste picture directly into email

I have been searching for an answer to this but have yet to find a suitable answer. I have some screenshots which I would like to paste directly into an outgoing mail message. I am NOT talking about adding it as an attachment, and am NOT talking about simply adding an icon within the message which the recipient must then click on in order to open up and see the screenshot. What I am talking about is PASTING the screenshot/picture directly into the body of the mail so that the recipient can see it right away the same way it can be done in Outlook.

Sorry if I sound a bit rude or frustrated, but I have been searching for a solution for quite a while now, and have also noticed that many other people have the same problem, yet every answer I have seen up to this point completely misses the mark by explaining how to add an icon (which needs to be clicked to be seen) within the mail rather than answering how the image can be shown in the message itself.

Thank you.