1)

You can add up to 8 tooltips in an image step

Click "Select" and then select the area that you want to create a tooltip for

2)

Enter description for the created Tooltip

Also, you can use text and other formatting tools to customize the description

3)

From here, you can choose a position for tooltip

4)

In case you want to reselect the area for the created Tooltip, you can use "Reselect Element" feature

5)

From here you can change the color of the Tooltip's border and increase/decrease line width