Option of summing columns and row in tables and matrices

I have had a continuous problem with totals not summing my columns. I've seen different solutions online, but they all involve coding that is not applicable to my model (calculating attribution based on allocation and returns through measures). The easy option would be to add an option on how totals work. Either you can choose to apply the formula as of now, or you could choose to Sum the values in the table. There could also be other simple additions such as Average, Min, Max, etc.