This preference sets the Chunk Size for FLIST commands
When an FLIST matches many users, and a new query to Facebook is required for each user, the multiple queries are bundled together in chunks (the default is 10). If your queries are timing out, or you have having difficulties, this preference can be adjusted. However, the author does not expect that you should have to adjust this. If you are encountering problems, contact the author. Setting the chunk size to -1 will bundle ALL queries into one call.
The following commands are affected by this preference: