Add a separator by moving the "Separator" instrument to the desired position in the e-mail body.
A form will appear. Select the style of the separator and set the width and height of the separator.
Set the separator alignment. Set the color of the separator.
When everything is set, click on the "Confirm" button.
To remove the separator from the e-mail, click on the "Remove item" icon above the separator.
A confirmation will appear.
Click on the "Yes" button to confirm it.
To move the separator to a different position, click on the "Move object" icon, and hold while dragging the separator on the desired position. Then release.
To duplicate a separator, click on the "Duplicate item" icon.
To edit a separator, click on the "Edit item" icon.
A form will appear. The edit process is the same as the creation process.