[Q] Clarification on recovery topic

I was going through the thread , [15.11.2012][ICS]PhilZ Touch 3.00 - CWM Based Recovery 6.0.1.5 (Temporary flash) by Phil3759. It talks about flashing a temporary on a stock recovery. I have few queries about this (This is about the concept rather the actual method itself, so though its for S2, posting here)

1. If I understand correctly, stock samsung recovery (3e) looks for signed zips (signed by samsung). So either this is writen for older recovery (2e) which may have allowed unsigned zips OR stock recovery refers to something else (thats not from samsung)

2. If my understanding is correct, there is a separate recovery partition which holds its own recovery kernel separate from the normal boot kernel. In this background, what does flashing insecure kernel means? does this procedure replace the main android kernel? does this insecure kernel also act as recovery kernel when booted in recovery?

3. is there anyway to backup recovery partition (as far as I can think of, this may not be possible. As I have not seen any way to root SGR without installing custom recovery first. and through heimdall, I dont think a dump can be taken of partitions)

[Q] Need a quick clarification on KNOX, AOSP and S-View topic

Hello all!

I just flashed the SM-N900W8 KitKat update through Odin, and I am still on Knox 0x0. I really want to try out CM11 and see how fast KitKat can fly on the Note 3!

I have gotten confused with the multiple threads for rooting and how to keep Knox 0x0, I'd like a bit of clarification. If I use CF-Root, can I keep 0x0?

Simply put, is it currently possible to flash CM11 on my SM-N900W8 and retain 0x0?

Finally, I have a genuine Samsung S-View cover. Is there some way to emulate the functions of the S-View case on AOSP?

Thanks!