Picklist grading from seating chart

I love the ability to grade from the seating chart, but I find it cumbersome to have to tap so many times to get to the grade that I need to give. When I grade from the seating chart, I am usually doing very quick assessments. It would be faster if when you click on a photo, a pick list could appear with the possible grades for the student. I use custom editors that are populated with icons, so there would never be more than 5 icons in the list.

Yes, the custom editors are no longer quick from the seating plan. Count on a nice solution for this.

For conventional grades, if you choose the 'Grade selector' it will allow you to pick from a list. This list is based on the chosen 'Grade type'