Set Parameter Description in Custom Tool

Discussion created by BrokenLegMike on Aug 4, 2011
Latest reply on Aug 4, 2011 by dhoneycutt-esristaff
Does anyone know how to set the description for a parameter in a custom tool? In the example below of the "Calculate Field" tool, when you click in each parameter you get a description about the input/value/item to be entered in on the right hand side. I want to add a description in a customized tool, but there doesn't seem to be an option to do so?