To edit or delete a graph group:
Go to Settings
Click Manage Graph Groups
Click edit graph group for the one you want to edit or delete.
4. To delete a single graph from the graph group, click the red "x" on the right.
5. Update Graph Group to save or
Remove all will clear the graphs so you can start again and add news ones
Delete to delete the graph group
Cancel will ignore all changes and return to the Manage Graph Group page.