Where can I find list of meanings of all icons in RHV's Compute -> Virtualization screen?

I'm trying to figure out what some of the icons mean when looking in RHV's Compute -> Virtualization screen. See screenshot of an example. There was a one icon in particular that had a little blue gear on it. When hovering it showed no description, some show a description but I'm assuming these are documented somewhere?

I looked through the admin and user's guide but couldn't locate them.