{namespace}-bulk

By default, Crud instances come with bulk actions. The only actions provided by default is "Bulk Delete". However, you can provide more options for this. It can be "Bulk Copy", "Bulk Process", "Bulk Deliver" etc.

Every crud instance generated has a filter "{namespace}-bulk" where bulk is the namespace of the Crud instance. Concretely, you'll have to set your filter like this, if you're extending the user Crud instance (ns.users).

You might now need to know how to catch your custom action.