Editing some of the Activity and Individual fields is not permitted (principally information to do with Types) #59
Description
Type information is key to creating features of the Activity Models, particularly when Reference Data is an expected output of the modelling. Unfortunately, the editor doesn't allow these fields to be edited after first entry. The only way around this is to either get it right first time (rare, in my experience) or to export the TTL, edit it, and then re-import it.