Marine mode rule set custom tests are specified as part of the rule set view style definition using the Tools > Define View Style command in the Drawings and Reports task. The number and type of tests available depends on the source object type selected on the Actions Tab on the Edit Ruleset View Style Dialog, as part of the rule set view style property definition.
In the Edit Ruleset View Style Dialog, you can assign a custom test to each action (a row on the grid) by clicking Edit in the Custom field. Edit displays the Custom Tests Dialog.
The Custom Tests Dialog displays when you select the Generic Ruleset on the Actions Tab.