I would if I was at home, not currently. I just did this:
http://gbatemp.net/threads/the-status-of-gateway-and-a9lh.427889/page-15#post-6385681
Later when I am home if you don't have it I can post the payloads I used. I have it so my units boot GW by default and if A is held down it boots into CFW.
Actually I was able to grab a copy of the files I used in the above link.
With this you should have enough to do what I did if you follow what I said in that link
Just make sure to put whichever payload_stage1.bin you prefer (start or A or B) into a9hl folder before updating a9hl.
Wow this is way above my head, your file has 3 folders? I am new the A9L sorry mate, i want the same setup as you (default emunand then hold a button to go CFW) plus Start to go Decrypt9? is that possible?
I don't even know how to reflash the payloads haha