Hit Points, Endurance, Influence window
open up the combat attributes window and right click on whatever you want to display
to get the combat attributes window just type /toggle combatnumbers
or go the powers tab and click combat attributes

click the powers tab, above your primary powers is a "combat attributes" button. open it. there you can find the info, you can display like 10 attributes at a time or so, not sure on the number, just right click it and hit monitor such and such.
I'm sure this has been asked a few time before, I just couldn't find it.
Can someone tell me how to get hovering window which displays your current hit points, endurance and so forth?
Thanks in advanced.