Include meal breaks within your shifts.
Click the Shift Times icon to open the Shift Times window. The shift-time toolbox has a little fork icon in the upper right. Click on it so the box includes a Meal Break edit box.
You can't set the time the meal break begins or ends, only the total break time is entered here. For example, if lunch is 30 minutes and people get two 15-minute breaks, you'd enter 60 mins of break time.
The value plays into the tallies. It lets you set the actual begin and end times of the shift but have the tally count work hours only.