code: function(text) {
  			var item = explorer.getNavHandler().currentModel();
  			if (item) {
  				var value = item.parent.value;
  				if (Array.isArray(value)) {
  					value.splice(item.key, 1);
  				} else {
  					delete value[item.key];
  				}
  				updateModel(item.parent, true);
  			}
  			return null;
  		}
docs: $NON-NLS-0$