If you just want the name of a character, the path to one would be:
Raid.Volume.Group1.Member1.Basic.Name.
FullName
If you're already inside of the Raid node, you obviously don't need to specify it.
There's a UI documentation file someplace in your EQ2 folder. That lists some of the things like events and properties of different widgets. Otherwise, it's all guess work that we've done on these forums.