Unplayable and out-of-range notes

Craving pardon if I’ve missed this in the docs (or here… I did search, honestly!), is it possible in Dorico to colour or otherwise indicate when notes are out of range for any given instrument, or are otherwise unplayable - e.g. impossible or difficult double stops etc with strings?

As a non-player, I found this invaluable in Sibelius. Is such a feature implemented in Dorico (1.1), please; or, if not, is it planned?

And if not planned, may I request it as a feature!

TIA!

Not yet
https://www.steinberg.net/forums/viewtopic.php?p=564707#p564707

Thanks, andgle. Of course!