Edit a Group
From the Group & User Administration page, click on the group you wish to edit until it’s highlighted in blue, followed by Edit to open the group editor page. In this example, we are editing New Group.
The group editor page will display.
Basic Details
Change the group name within the text field Name box and click Save to confirm the changes.
The “Use a custom pin colour?” allows you to change the pin colour that displays a user’s location on the map for the whole group. Turn the switch to Yes and choose your preferred colour for the group from the drop-down, then click Save. 
Use the Edit buttons to add group members, remove group members, configure the Device Configuration, add/remove Permissions and add/remove Events. Remember to click Save to keep the changes made.