If you want to have six modes, you'll probably have to configure your RC transmitter to do this. That's usually accomplished by mixing a two position switch and a three position switch on your transmitter. Set your switch(es) to (ideally) produce PWM pulse widths of 1165, 1425, and 1815 microseconds or 1165, 1295, 1425, 1555, 1685, and 1815 milliseconds. (You can also do this with an analog dial, if you have one, but it's hard to reliably turn it to just the right position for six distinct settings).
This guide will show you how to configure your WFT07 radio gear for arducopter
This guide will show you how to configure the settings and calibrate arducopter so that you are ready for your first flight
Before you can configure your Arducopter, you will need to first connect everything together. This guide will show you all the cables and parts that you will need to connect to your arducopter.
This guide will show you how to quickly install he required software for arducopter. Once the software is installed you will then load the firmware onto your arduopter flight controller board
Before setting up your ardupilot mega board (the brains of your arducopter), you will need a multi-rotor frame. There are many choices available to you and a couple are listed below.