To create or change a group, click on the top of the page: GROUPS.
The following screen appears. Now click on: create new group.
Type a name of the group AND give it a color. This color appears also on the mainscreen at the box around the car / machine.
The box below will be visable with all the GPS units your using. Choose the units you want to have in the group by selecting them (click on it) and to move them by clicking the arrow in the middle. you can add or delete them to the group.
When finished, click on CREATE, down on the left site of your screen.
In the mainscreen you will see the groups on top of the list with the color you choose. By selecting the group you will see only the units of that group.