Proximity Trigger Filters

[jamarogers]

I am trying to detect a particular object (entering an AreaDefinition) that is NOT an AI or MobileScenery Object. It appears this was done in the FSX Triangle Mission, but replicating their "on enter condition" is not working. The object is the "flour_bomb". In Triangle, the object was "cargo_pod". Has anyone had success selectively detecting non-AI or MobileScenery objects?
I also tried setting the filter to "Reference" , but the "on enter filter" only allows specifying AI and MobileScenery.
Any help, advise or reference would be appreciated.
Thanks.
Jake