Allow Column's Summarize label to be copied

I’m not sure why this hasn’t been brought up yet, but I’d like to request for the Column Summarize label’s value being able to be copied. Because I don’t see what’s the point of the sum if it can only be viewed.
Even better, if the values can be referenced in formula. But if that’s too much work, please add feature for the value to be selected and copied. As it will help tremendously when tables are used for calculation purposes just like Excel without having to re-sum all values in the column using sum() formula.