It would be amazing to have the format painter be available for Summary Fields. It is incredibly cumbersome to format each individual summary field when you are creating many that should be formatted to the same number type, decimal places, etc.
It is far too tedious to change the formatting of sheet summary fields. We need the ability to bulk edit fields. For example, changing multiple fields to currency, or decreasing decimals. Currently, this must be done one-by-one through the drop down menu. Decreasing two decimal spaces requires one to click the menu, hover over "Number Formatting, click decrease decimal and then repeat this entire process. When one needs to make this change over many fields, it's very time consuming. Make the mistake of reducing decimals, then converting to currency, and the decimals are back and you must start over. This problem exists all over SmartSheet, like when formating Metrics on dashboards… Need bulk editing options!