Lighting Direction for Environment
I haven't been able to figure this out yet. I have the following relevant settings for a scene:
Environment Mode: Dome and Scene; Dome Mode: Infinite Dome; Draw Dome: OFF; Environment Intensity: 2.0; and the rest are all set at their defaults. My character is facing in the default direction, which would be towards the Z positive axis. Is there any way to orient the dome in order to get the environment light directly above the character? Rotating the dome just rotates it around the y-axis. There doesn't appear to be any options to "rotate" it around x or z. Any recommendations?

Comments
With Draw Dome off, you're not using the actual image component of the HDRI, so you could just set Environment Map to "none" and use the Sun-Sky system instead.