Hello,
Which exact parameters are You looking for?
A lot of them should be in menus in the bottom right part at Your screen (just open and scroll down through menus). If You want some specific shapes/morphs - be sure before, that You installed them earlier.
If You want a complete change of the textures/HD resolution, etc - it should be visible, when You click on the characters on the left side of Your screenshot.
But- as I see - You put in the scene the basic G8F character, hence, not all textures/options/appearance from the left side might suit it, because they were done especially for the characters, which You see there.