I just did my first setup of my BCPP2 with my DX7 and the first thing I have to say is: DO NOT FOLLOW CPP1 DIRECTIONS.
For some reason, they are quite different. My LHS DX7 guru helped me get started on the setup or I wouldn't have been able to fly it at all with the DX7.
So, without answering your question directly, I'll give you what I have done in the regular setup

System Setup: Swash type: 3 servos 120degrees

Function Setup: First, I'm not giving you the D/R stuff because that is for you (and me) to experiment with
REVERSING: This is important as it disagrees with the CP/P settings
Ch 2,4 reversed, all others normal (INCLUDING 3-ELEV)

I left Travel Adjust at 100 on everything for now.
SWASH MIX - again, disagrees with CPP1. ALso, you can tweak these numbers to your preference but NOT THE SIGN, that is important as it takes care of the not-reversed Elevator
AILE = (+) 60
ELEV = (-) 70
PIT. = (-) 20
I did these settings because the CPP2 manual said the pitch should be -2 at 50% throttle and about 10 at full throttle. I used a pitch guage to be sure. I am uncertain I got the -2 but at least got it down close. Elevator and Aileron are subjective and could probably be smaller if it is too squirrelly or larger if you are used to this heli.

THRO HOLD - your option but it sure helps me!
HOLD POS = -5.0 (0 is not enough)
SW: AUX2 but GEAR is ok if you like that switch better. Just remember that SERVO needs the other one if you are going to adjust it via the Tx

THRO CURVE - I thought that linear would be ok on this but turns out I need more throttle by the time lift starts. You can leave it linear and fiddle later but here's what I've got (though I'm still playing). CPP2 manual was my reference
Point-L = 0
POint-1 = 34
Point-2 = 70 (this is the half-stick point)
Point-3 = 86
Point-H = 100%
EXP=OFF

PITCH CURVE - again, the CPP2 manual gives its own diagram so I used it to start.
Point-L = 0
Point-1 = 0
Point-2 = 2 (Lift just starts at 50%)
Point-3 = INH
Point-H = 100
EXP = OFF

I'm not sure I like this setting but am working on it. This way I just start getting lift at 70% throttle

PITCH CURVE - HOLD
Set all to 0.0% if you're using Throttle Hold unless you want to play with an Auto-Rotation gear

Hope these help you get started. I had a hard time getting some help so I'm no expert either. But this works enough to get into a stable hover. Good Luck!