Edit Traffic Sign, 40 mph icon-selector needed for _us_ regulatory icons

Great to be able to add a regulatory edit for traffic signs.

The traffic sign I’d like to edit is in the US and is for 40 mph.

I see 35 and 45 mph icons in in the selection panel. Please either add a 40 mph selection- or suggest another way to add a 40 mph sign.

Typical sign:
40 mph sign