Can anyone tell how to change NI Massive's "Documents/Native Instruments/Massive" location on Mac (the one in Options > Browser)? I can add a new folder and delete it but I can't do that with the primary one..
Use the "Add" and "Delete" buttons to the right of the "User Library Directories" window to manage the directories included in the database. If you change the paths with these buttons then don't forget to "Rebuild DB" button afterwards to rebuild the database and include the changes. (All detailed in the User manual.)