As I use custom fields almost exclusively, it would be fantastic if I were able to do a batch update using those fields. Otherwise, all information updates are done manually, which is time intensive and not very efficient, especially when the list includes 100-200 people.
As a workaround, you can:
- Export the list of people
- Delete all columns but id
- Make a column for your custom field(s) and populate it
- Import that CSV – setting the field for everyone in the list