app/assets/javascripts/active_admin/lib/checkbox-toggler.js.coffee in activeadmin-1.0.0.pre4 vs app/assets/javascripts/active_admin/lib/checkbox-toggler.js.coffee in activeadmin-1.0.0.pre5

@@ -31,6 +31,14 @@
     setting = if @toggle_all_checkbox.prop 'checked' then true else null
     @checkboxes.each (index, el)=>
       $(el).prop checked: setting
       @_didChangeCheckbox(el)
 
+  option: (key, value) ->
+    if $.isPlainObject(key)
+      @options = $.extend(true, @options, key)
+    else if key?
+      @options[key]
+    else
+      @options[key] = value
+
 $.widget.bridge 'checkboxToggler', ActiveAdmin.CheckboxToggler