Copy The Copy command copies the values of the selected cell(s) to the Windows clipboard for use within Graphic Groundwater or with other applications. For example, if you have entered values for an overlay, e.g., horizontal hydraulic conductivity, for one layer and wish to use the same series of values for another layer, copy the values by highlighting the desired cell(s), then click on Copy. You then change the active layer (or overlay) and Paste the values. Consult Chapter 4 for more information on this command.