N00b questions (hotbars and topbars)

[swordchucks]

I'm enjoying the UI mod a lot, but I'm more than a little noobish and had two questions:

1) How do you add a second, third, etc., hotbar? I know how to page the one that's there, but that's about it.

2) How do you resize the top bar? I'm running at 1650 and the topbar is only about 2/3 of the way across.

Thanks in advance!