we often get donations from umbrella organisation and then later have to reduce the gift amount on the orginal gift, and split the total donation amount among 1 or more supporters (in the past up to 20)
when trying to reduce the gift amount on the orginal gift in NXT, we get the warning "gift amount can't be less than amount subject to tax" but we cannot edit the "amount subject to tax field" so we have to revert to database view