I finally got EventScript, a free Plug-in from Softwares for Humans, working properly. (Their URL is http://www.softs4humans.com/FMPro_Plugins.html.) For an auto-enter calculation field (e.g., test_of_S4HU) the proper calculation to call the script is

test_of_S4HU & S4HU_EventScript( "calctest2.fp7" ; "S4HU_script" ; "" )

where the name of the example field is test_of_S4HU, the file name is calctest2.fp7, the script name is S4HU_script, and the parameter is null ("") here. The test script is just to multiply the current value in the field by 8, display a custom message, and then halt. Prior to understanding this, I was leaving out "test_of_S4HU & " and just calling the script directly, which did nothing.

Thanks . Allowed me to get it working . Using a calulation field which equals a pop up valuelist and event script I can now navigate to anywhere. The pop up list being a seperate field

Henry S.