Save and Publish
When the MQTT node is plugged-in with Configuration Hub, the common toolbar will contain the Save button at the top left. Changes made in Configuration Hub for MQTT nodes are not saved on the server until the changes are published. Until then, any changes are stored in a separate directory on the node being configured.
The Save button responds to certain panel actions that can queue up and will not be applied to the unpublished list until the Save button is clicked. For example, any changes in the Connections panel must be saved before they are applied. If you do not want to save the changes you made, close the panel, and choose not to save. An asterisk (*) appears in the panel tab when there are unsaved changes. Click Save to save the connection panel details.

A prompt message appears to select Publish. Click the Publish button to publish the changes to MQTT server.
The publish operation begins, after you click the publish button. It may take a while depending on the number of tags being published to the active MQTT node.
