Marquees are moving text messages.
To insert a marquee, select a text in the topic and from the HTML section of the Insert tab click on the Text Box dropdown menu and select Marquee. To change properties of the marquee, right-click on the marquee and click on Marquee Properties to change the marquee settings.
Click OK to apply the settings to the marquee and close the Marquee dialog box.
To delete a marquee, click on the boundary of the marquee and press the Delete key on the keyboard.