My car is a 2010.
Originally, the button on the inside only pops the smaller trunk. The FOB will originally open the power lift-gate, but you need coding to close the power lift-gate from either the inside or FOB.
I don't have any "tips", but maybe a suggestion. This was suggested to me by another forum member who coded his car...... Having cameras on at all speeds..... I was on the fence about enabling this option and finally decided against it because once engaged, the reverse camera would have to be shut off manually. As original or default, it will shut itself off when the car is put in D (drive).
I don't understand why more people don't code their cars. Not having to ACCEPT all the disclaimers is reason enough for me!
FYI: The guy who coded my car has done hundreds of BMWs and Mini Coopers over the past three years. Currently, he can code many E-series BMWs remotely. Apparently, in a few months, he will have the ability to code many F-series remotely too!!!