If you have custom libraries on a Vault server, you can deselect the new Application Options setting, Check all Families for Library updates, to quickly suppress all families in custom libraries from synchronizing to their parent library on the Vault Server.
Previously, the only way to prevent all Content Center families in custom libraries from being synchronized to their parent families on the Vault Server was to suppress each family individually in the Content Center editor.
For more information, see Content Center Tab Reference (Application Options).