Currently, Bulk Change allows staff to replace existing information in free-text fields, and add to the beginning or end of the field in some cases. However, existing text cannot be edited.

For example, if a group of item records need the volume numbering changed from “v.” to “vol.,” Bulk Change cannot update all the items if they have different volume numbers. Staff have to replace “v. 1” with “vol. 1,” then do all the v. 2s, then v. 3s, and so on. Similarly, if a library discovers that some of its records have incorrect diacritics, each word must be changed individually in every record, rather than using Bulk Change to replace “espąol” with “español” in all of the affected records.

I have used Sierra in the past, and its Rapid Update function can do this type of editing. It is very powerful and saves staff hours of work.