implemented 'About' menu item in help menu. Created an 'Edit' menu with two items: 'Edit Entities', and 'Edit Global Fields'. This all works but if you try and use any items in the 'Edit' menu prior to initializing everything ('New Simulation' screen) then exceptions are thrown.
implemented 'About' menu item in help menu. Created an 'Edit' menu with two items: 'Edit Entities', and 'Edit Global Fields'. This all works but if you try and use any items in the 'Edit' menu prior to initializing everything ('New Simulation' screen) then exceptions are thrown.

tsmacdonald/simulator,tsmacdonald/simulator