Enables the CHPS toolbar to be used.
Upon startup, this button is black which indicates that the CHPS toolbar is disabled. This is the default setting. In order to use any of the CHPS tools, this button must first be clicked on. Upon clicking, the button will turn green and the greyed out tools in the toolbar will be coloured and are from then on, functional. The legend box should also appear. To disable the CHPS toolbar once more, click on the button again.
Topic Last Updated: Tuesday, 13 September 2016