This is the config panel. Here, you'll choose the classes to be included with AutoFill, plus other options such as showing minimap button, including "end of broadcast" indicator, including "Auto-Reply Assignment" instructions, etc.
An example assignment without phases. Note that the phase titles aren't even shown unless they're needed. Also note that Sallynoshow is in red, signifying she's not in the raid. Runner's class mark shows he's an exception that was manually assigned.
Here is the broadcast from the Assignment with phases picture. This assignment was sent to a custom channel. Note the phases are clearly designated, and use the custom titles!
Here is that same assignment, from the perspective of one of the assigned. This time, it was sent as a whisper. Note that whispered assignments are concisely displayed, but still contain phase indicators.
Here, the "Enable Phases" box is checked, activating the fully customizable phase titles. Any filled in title indicates a new phase Leave the title blank to include that column as an additional assignment without starting a new phase.