Where has the disable option gone?

Recent upgrade to 2015 SP1.1 (from 2014) has seen the return of the and tag on weldment parts, the option used to exist to disable this (http://cati.typepad.com/.a/6a00e5510582dd88340133f4c0a91a970b-pi) but no longer appears? Has this option been removed or just moved?

SolidworksWeldments