So, I'm playing around with huds lately, and have to admit that popups are a total mystery to me. This has to end so I've looked through the list to see what's on offer before I start messing with my own.
First problem proved to be trying to get a screenshot of the popup dropdown - try it and you'll see what I mean

Anyhoo, overcame that problem - what I did was create a custom hud, attached all the popups one by one and labelled them in the abbreviations.

I hope this is the standard issue, please holler if it's wrong or I'm missing some.

All that remained was to click each one and capture each of the pesky critters with a screenshot.........

** This one seems corrupted - anyone else seeing this on yours?? **

So there you go, the standard list afaik.