Proton sheet lacks an ease-of-life feature that Excel has.

Excel calculates and displays AVERAGE/COUNT/SUM, at the bottom right of the program, when you select multiple cells containing numbers.

This helps tremendously as the user doesn't have to type the formulas to get them, it is instantaneous.

Hence, following user story :
As a proton sheet user, I want AVERAGE/COUNT/SUM to be automatically calculated and displayed when I select cells containing numbers, in order not to have to set these formulas myself.

Thanks !