Dual dialogue allows you to portray two characters speaking at once. Their lines display next to each other in the script
In the Film & TV Editor
First, write both characters and their dialogue, highlight both, and then click the dual dialogue button in the toolbar.
The editor will adjust the dialogue items to be side-by-side.
In the Stageplay Editor
Your script will show dual dialogue items below each other, highlighted with the dual dialogue icon. When you print or download the script, they'll display side-by-side.