Regions are set of predefined subtitle position and visible zones. Here it is possible to modify, create and organize all of your regions. Using the similar logic as in Styles, you can use many different Regions in your file, according to the needs of the file.
Some of the most typical cases of usage are avoiding the titles that are already in the video material; defining the subtitle area for the job specific purposes and demands; to standardize positioning on multi user jobs by saving and sending to all of them, thus unifying the job settings.
At your disposal you have two option to define the Bounds: By percentage of screen and by the distance in pixels.
You can also define maximum number of lines, as well as checking the options to Wrap Text and it to be Clipped.
By checking Absolute Positioning, it will be allowed explicit vertical positioning of the subtitle, thus preventing this Region subtitles aggregation.