The Lighting Controller

Any hints on the location? Is there a setting that I need to select.

Is there a master dimmer slider?

If i adjust it, does is stay the same setting over all the scenes?

Is there a way to have the "Text Wrap" on the button?

For example, I have a scene called 'BLACK OUT'; on the button it show as "BLACK O"...
Is there a way to make the button read like this:
BLACK
OUT