Right Click Field Sorting

I'm not sure which section to post this question in so hopefully this isn't too far off. A client came to me with a question I never considered and don't know how to answer. They are using Filemaker 11. If you have full access privilages in a database you can right click in a field and have the option for sorting by that field either ascending, descending, or by a value list. However, other privilege sets don't seem to have this option and they want them to have that option but not have full access. I tried setting their Available Menu Commands to All, but that does not change anything. Does anyone have any idea how to change this? To be honest I've never even noticed the sorting option before.