The Render Manager > Hardware Renderer (Global Renderer)
The Render Manager > (expand a pass) > Hardware Renderer
Set a current pass and choose Render 
Render Renderer Options from the Render toolbar.
By default, every pass you create has a single set of hardware renderer options that are shared for the scene. However, you can always create a local set of hardware renderer options for each pass, and edit the options individually. For information on how to do this, see Setting Global or Local Render Options.
Setting global hardware renderer options ignores those set at the pass-level. So if a pass has local hardware renderer options, they will be unaffected by any changes that you make to the global hardware renderer.
Whether you are working globally or locally, you must first activate the hardware renderer for the scene or the pass you wish to render.
Set the hardware renderer options as described in the Hardware Renderer Property Editor [Properties Reference].
