Feature Request - Quickly filter Keywords by "subtracting" one keyword form another.

Rather than having to go through the Filter dialog to build this Filter it would be so much quicker and intuitive to have a keyboard shortcut to allow you set a "AND NOT" condition directly in the Filter's Tab.

For instance I have a group of images for focus stacking hat I've already keyworded in Photo Mechanic to be "Stack 001" - I could have done it in C1 but hats not the point.

I also added keywords for "finger" and "hand" to delineate the start & other images within the stack.

It would be so much quicker if I could build the filter by say "Shift" + "Opt" clicking subsequent radio buttons on the keywords for "finger" and "hand" to quickly set the following filter condition ...

Yes I know the functionality exists but it's all about making the workflow quick and intuitive - right ?

Thx

Andrew Mumford