Awesome! Finally figured it out. I got the duplicate and rename part, but did not find the click to make a change. They really need a box that outlines the click area for editing the actual shortcut...The Focus Mask can be assigned a keyboard shortcut in the shortcut editor. Works fine here
I agree the default green for the focus mask is wrong for landscape, so I changed it to the exact opposite, saturated magenta . I also dropped the threshold to 200 and the opacity to 30.