For example, several phone number fields (spouse business, spouse mobile, mobile, business, main...) are default selected to be on when we run donor reports, which we almost never need, whereas fields we look at quite often are not (spouse first/last, unsubscribed), so nearly every time we run a report, we need to go into columns and uncheck/check multiple fields. It would be so helpful to have an org-wide setting where we could customize our defaults shown (still with the ability to adjust any specific report via the "columns" selection, as we do now).