Swatches panel values

[MickRose]

I find this part of the Swatches panel unhelpful. If I want something to be black (K=100) I can't click the black square because I get 84, 84, 78, 99. Similarly with the grey square. I can see where these values come from but it makes the 2 squares not fit for purpose for me. I'd rather they weren't there at all.

[MickRose]

Whoops - I've just realised my document was RGB not CMYK. In fact it seems to work correctly with CMYK selected.