You're referring to the parameter 'ignoreDescendantsInstance'...
( Roblox shorten these names... =/ )
From what my obviousness can detect, it's an instance that the
method will ignore descendants in. Ain't it obvious enough for ya? =P
"I'm thinking it would have an effect similar to Mouse.TargetFilter and block out that instance and its children from the method."
Captain obvious much?
@Iron,
No, he's not talking about some free modeled script.