'Group Labeling' in the CrewScheduler is a very useful feature to see quickly which employees are part of a group, right within the CrewScheduler.
As you can see, both DeWayne and Brandon are a part of the 'Haz Mat' group. Now, whenever they are on the CrewScheduler... those labels will be with them!
To enable this feature; click Employees -> Employee Groups. Find the group you want (or add a new) and click Edit. Then check the box, 'Indicate in CrewScheduler'. Then, click Save.