Odd problem i've run in to

[Soulsdesire]

So I started working with the Ui Builder the other day, and after going through the walkthrough by gm9 and looking at the advice from everyone posting here i've managed to get some sort of familiarity with the workings of the builder... here's the problem.

I'm trying to edit the player window. But while i can see almost every window in the view screen, for some reason the player window doesnt show up. Is this not supposed to be viewable in the builder? and if it is supposed to be viewable any idea's why it isnt for me?

The answer is probably here in the 100's of posts, but i've looked and either bypassed where i should be looking or missed it where i did look lol. any help is appreciated!