Hey Barrett, not to pester you or anything but last week there were a couple questions that you wanted to wait until after the stream to answer, and to my knowledge the stream didn't address them so:
1. Can we turn off/alter particle effects in combat?
2. The question was asked whether we could resize the UI components but Mike misunderstand as someone asking about the 8 ability limit. Can the hotbar/mission parameter/health icons be scaled up or down in size?
Thanks.
No worries! I also wanted to have the stuff open so I could check directly and not go off incorrect memory.
1. Not explicitly, but effects and post-process quality can be adjusted. Adjusting quality may result in the leaner visuals you'd like, you'll have to tweak to your best liking.
2. I think hotbar is as it is, and health/quest/mission can be hidden (in non-combat or entirely), but not resized far as I can tell.
Although I already know that the 8 ability limit is fixed, I would like to know if we can access and directly use spells from our spell menu--or do we need to drag-and-drop them into the ability bar before using them? 
Unless there's a way I'm not aware of, they need to be on the ability bar (which can be swapped around whenever you're not in combat).