Changing the game resolution?

[Nedrian]

I'm not sure what the correct terminology is for the question I want to ask, so I'm sorry if I butcher this..

When the new ui came out on EQ live there was a way to change the size of the viewable area. I play in windowed mode, and what I'm looking to do is change it so what my character sees is slightly smaller, but still have like a black border around it where I can put my windows.

I'm trying to get back to something where I can click and target anything that my characters sees, without things like my chat window or hot keys getting in the way.

I can't remember how it was done on eq live, I feel like there was a command or something, but I haven't been able to find anything like that. Is it still possible?