Enhancment: New Parameter Window sanity check when removing existing options

[ghramsey]

The New Parameter Window is great. Simple check boxes on or off, but when you uncheck an parameter with existing data
that data could be lost. And the effect is immediate. I could see making such an error myself.

It can obviously be recreated, but might not always be possble for some data types or other things are linked.
Can you add some sort of protection against this ? Hghligting existing parameters or something to warn against removal?
Maybe red or another color to show it contains data.