How to automatically aggregate the numerial value of every 10/20/30... coloums

the original data: 300 attributes: from day1 to day300



I need create 3 datasets with generating features (each row is still each student (id))

dataset1: feature generation: aggregate every 10 days, resulting in 30 attributes (day1-10, day11-20...)
dataset2: feature generation: aggregate every 20 days, resulting in 15 attributes (day1-20, day21-40...)
dataset3: feature generation: aggregate every 30 days, resulting in 10 attributes (day1-30, day31-60...)

I know I can use generate attribute operator then manually select day1 to day10, then day11 to day20...
but I want to know how to automatically generate these aggregated features?

Thank you!