yeahh, basically my theory has been confirmed on practice
items in bold are OK to go with E70 for now. the rest I did not tried yet but will try during next 1-2 weeks.
what I do now is studying theoretical part of the bmw modules and their communication between eachother. the reason for that is because i found that it is very simple to kill (i would say to put in some kind of "sleep" mode) any of vehicle's modules by doing a coding in a wrong way.
I ordered special interface (not regular usb one) from china. That interface allows not only coding but also programming for any modules in car via optical channel. E70 has a MOST type of bus and for proper coding and programming it is always better to use this type of interface. For basic coding (such as retrofitting of CCC or even CIC) it is possible to use USB interface.
More updates to follow.

1.Enable remote folding mirrors and windows/sunroof opening/closing
2.Enable remote windows/sunroof opening/closing
3.Enable remote hardtop folding
4.Enable One-touch sunroof venting
5.Enable TV/DVD-in-motion (only for the CIC) - yes it is possible to instal CIC instead of CCC in E70
6.Enable Euro front blinkers (disable US Sidemarkers)
7.Enable M3 digital speedometer in the instrument cluster
8.Enable any lights as your Welcome Lights
9.Enable remote trunk opening/closing
10.Disable iDrive warning
11.Disable door gong
12.Disable headlight washers
13.Disable a bulb check error (LED bulbs, HIDs, etc.)
14.Retrofit coding (OEM Alarm, Sirius, PDC etc.)
15.E9x LCI tail lights coding (all FRM versions)
16.Head Unit audio output coding (Stereo, HiFi, TopHiFi, Individual)