Hey Max rows/board are already affected by filter/show menu. It was my bad to keep this one open for too long. But your request is something different and I will rephrase this whole topic to your request. Different aggregate formulas for totals make absolute sense :)

Additionally, it would be great to summarize values at the row/board by different calculation methods, similar to Subtotals and Grand Totals in Excel Pivot Tables.

For instance, i want to see the average days between two custom date fields. Or perhaps I'd like to see the average budget by row.