If you right-click a column header on a list form in Isah (List tab), the actions available for the column are displayed:
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 | This value only affects numeric fields. If you enable this feature, all numbers in the column are added up. | 
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 | This value only affects numeric fields. Isah searches the column for the largest value and only shows that value. | 
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 | This value only affects numeric fields. Isah searches the column for the smallest value and only shows that value. | 
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 | This value only affects numeric fields. Isah adds up all figures in the column and calculates the average. | 
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 | Isah adds up the number of lines. | 
The result of the column functions is displayed underneath the corresponding column at the bottom of the form. The column functions are saved of a per-form and a per-user basis, so you do not have to re-set the column functions the next time you open the form.