Can I Pass Feature State (&Feature1 or !Feature1) As Command Line Args to .exe CA?

I have a small widget that updates the Add Remove Programs display based on what features are installed. I pass in the [ProductCode] and tried passing in &Feature1 !Feature1 &Feature2 !Feature2, but all I get is the actual text there, not the numerical value.

If I use ADDLOCAL that will only show Features Added during a maintenance install and that won't due because features already installed aren't present there.

Any Help appreciated!