The Redline Toolbar allows you draw and annotate items on the map, these items are known as "Redlines". It allows you to add, select, modify and delete Redlines that have been drawn on the map. The Redline tools allow you to annotate a map which can be printed and the Redlines will appear on the map report.
To access the Redline Tools, click on the Redline tool.
This will open the Redline Toolbar. Here some are examples of this toolbar: