Alter a Writable Attribute
You can also alter writable attributes. If an attribute is read-only then you cannot alter an attribute's value. To alter an attribute's value, just double-click the current value and enter the new value. If the Edit button is enabled, then you can click it to open an advanced editor. If the attribute type is a JMX object name, clicking this button displays the JMX attributes and operations for the object. Click the Refresh button to refresh the attribute values. If an exception occurs while retrieving the value of an attribute, the exception is displayed in place of the attribute's value.