Would there be a way to have it set up like this (format-wise, ignore the data):
My idea would be to put everything into one fixed-width group so everything is lined up, and then place the repeating group of Skill Names and Skill Values into their own group. Then using an HTML element, enable horizontal scrolling (only for Skill Names and Skill Values). That would keep the list of Student Names fixed to the left, and allow teachers to scroll horizontally through Skill Names and Skill Values only. I don’t know much code and am not sure if this will work but maybe it’s worth a try? 
Enabling vertical scrolling using HTML was done in this thread: