The "Subtitles" object is dedicated for adding the subtitles to your scene. To add this object, select it from "Insert" main menu; alternatively select it from the "Insert" drop-down list of the tree context menu.

When added, the subtitles object takes up the whole area of the scene:

Subtitles_canvas

You can adjust the area of subtitles displaying by changing the position and size of "Subtitles" object.

The "Subtitles" object has the following parameters:

Subtitles

Define the file containing subtitles by pressing the "…​" button. In the "Time offset" field you can specify the subtitles displaying delay.