1. A preview of your message can be seen here.

2. Edit specific fields in the message. Look at the preview to see what the changes look like. Keep the Header and Body text as short as possible to ensure readability on all screens.

3. To show the message, put the slider to On. To hide this message, put the slider to Off. Each page can be shown or hidden.

4. To have the message override normal content, put the slider to On. Otherwise, put the slider to Off. 

5. Save & Close to apply your changes. After pressing save, the changes will take effect within 2 minutes.

6. Note that an End Date may have been specified on a previous use. Verify and fix that (see last section), otherwise your adhoc message may not be shown.

Specifying an end date for your message.

1. Click on the Properties tab.

2. You can click on the calendar icon to pick an end date.

3. Or click on the "Clear End Date" button to remove the end date.

4. Save & Close to apply your changes. After pressing save, the changes will take effect within 2 minutes.