Add language mode to "show when" settings?

[j-a-s-o-n-g]

I would love to only be able to show certain commands in a pick list if the language (syntax) mode matches certain languages. For example, I include emmet commands whenever the languageid is equal to html, reactjavascript, etc only.

Thanks!

[baincd]

This is a good idea. I probably won't get to it for it bit though.