This may help you
Signal Flow chart you need to read the whole document as it goes into some depth and there are some interesting views of the signal flow.
Basically
1. The FX bin can be set to be before or after the Pro Channel.
2. Within the Pro Channel you can add FX chain containers that can hold Individual or multiple FX, you can add more than one of these containers.
3. The Pro channel module's within the Pro channel can be arranged in any order you desire.
4. The only pro channel module you can not remove is the Quad curve EQ but it can be disabled.
5. You can save the Pro channel configuration as a preset.