There are many user-defined options in BREEZE AERMOD. These options allow you to customize the modeling system to your specific requirements without having to set up these options each time you start BREEZE AERMOD. The Options are accessible through the Options form.
Setting Application Options
From the Tools menu, select the Options menu item. The following form will be displayed:

Page url: http://www.breeze-software.com/prod/aermod-isc/help/index.html?options.htm