Both channels can be easily and seamlessly accessed through the Page List while using the [Multiple CG Page List] button. Select it on the first channel, minimize GenCG, and select it again on the second channel. With this, you will no longer have to access the two channels through the Microsoft Windows toolbar.
Option 2 - Multiple CG Controller
The icon next to [Multiple CG Page List] is the [Multiple CG Controller]. This allows you to control both channels simultaneously with one Controller. For easy switching between channels, press Ctrl + Tab. This will let you control the playout by using the numeric keypad on channel 1, channel 2, or both channels. When using this in addition to your normal numeric keypad functionality, you can completely control GenCG without using your mouse.