Lumia 950 XL :: Possible To Assign Different Alerts To Different Email Accounts?

I got my L950XL . I'm using this phone ONLY with futures it comes with: phone, email, calendar, web browsing not often, sms messaging. No social networks, no movies, no games. But I keep my attention to this phone, because I like how it works, when it worked. Now, after more than month, few updates and fixes, I would like to ask few questions:

1) Is it possible to assign different alerts to different email accounts?
2) Is phone still crashing during phone calls thru Bluetooth?
3) How stable camera now?
4) Is it possible to "read sms messages aloud" thru Bluetooth without Cortana enabled, like it was in previous versions of WMP?
5) Is it possible to configure "Quiet Hours" without Cortana?
6) Does Cortana work thru Bluetooth speakers and microphone?
7) Is it still a "Room heater" during charging process?
8) Is battery drained in couple hours, if Cortana with all subservices( location, microphone, etc) enabled, but person in the subway and no GPS access?