Posting Pics, Clarification & Help, please

[jock001]

So after 10years, I finally had an idea for a post, and followed Sam's excellent tutorial sticky on how to put pics into posts, but only got a far as Step 11, right click on BBcode to copy, and paste. I couldn't understand how to do this and ended up just typing in the code in the approximately relevant place in the post. However, I can't believe that epics like Sam's outdoor shoots, or "The tale of Fluffy Kittenpaws" requires every individual pic's ID to be typed in. It would take the author hours (if it does then my admiration for their tenacity knows no bounds), so I presume there must be a way to click & drag. But how, what and where? Silver Surfer I am not, more like miserable baldy-headed old git Surfer. So advice (on how to do this, not where to go) in simple steps, would be greatly appreciated. Thank you.
Jock.