Customizability - Attribute keyboard shortcuts

[Quantum7]

I now have a "Next Action" attribute set for all my tasks & appointments. It's defaulted to No.

I'd like to be able to set it to Yes with one shortcut key on my keyboard. Otherwise I have to switch to the mouse each time I want to change the attribute (or do 5-10 keyboard presses to get to the correct item).

The suggestion therefore is to be able to define shortcuts on an attribute level. A bit like the "Flag|Completed" shortcut which is already possible to assign customly.