sorting rows without changing other rows
I am using Numbers to make a grocery list. I filled in information into various rows, and now want to sort each row alphabetically. When I filter one row it changes all the others. I want to just sort them one at a time while maintaining the other rows. I have a new, 4 month old computer with the newest version of Numbers. I am used to Excel, but want to transition in to Numbers, but I am struggling. I am not using any formulas, just lists of words.
MacBook Pro with Retina display, iOS 9.2.1