# Saving Changes in Parameters and Configurations

When a controller has a status of On-line, it automatically updates ToolsTalk 2 if any changes are made in the web GUI or in the controller GUI.

Any changes made in ToolsTalk 2 are automatically saved but are not copied to the controller. A Push copies changes to the controller and is executed by an active command.

A push indicator is displayed beside the controller name in the plant structure workspace to indicate that configuration changes have been made in ToolsTalk 2 but not yet copied to the controller.

A push can be made in several ways:

- Select the Push indicator icon next to the controller name in the controller list.

- Click the Push command button in the system menu bar to start copying changes from ToolsTalk 2 to one or more controllers. A shortcut menu opens to select affected controllers

- Right click on a controller name in the plant structure workspace and select the Push command button in the shortcut menu. Changes are copied from ToolsTalk 2 to the one selected controller.

It is not possible to make a Push to a controller which has a status of Off-line.