I want to be able to add additional clients to some cases. The ability to do this used to be configurable via the case settings XML file before the configuration got moved into the UI. What's the current approach (version 4.6.x)?
From a comment by Coleman on June 18, 2015 regarding a question at civicrm.stackexchange.com/.../module-or-extension-to-use-for-tracking-agreements
> You can setup CiviCase to enable multiple clients per case, by editing > your xml/configuration/Settings.xml file. Set > <AllowMultipleCaseClients>1</AllowMultipleCaseClients>