Current Function:
After pressing a shift key on a value a slider pops down after which we can slide the cursor by using drag or click arrow key.
Proposed Idea:
What if we can scroll up or down on a value after pressing shift to change it rather than dragging the slider.
This will help in changing the value with ease. Scroll is not engaged anyway with the sheet when the shift is pressed. So let the scroll function be used to increase or decrease the slider.