merging lines

[ghalymt]

As part of my regular subtitle file editing, I often come across lines that are shorter than what I prefer. To tackle this issue, I make use of the "merge short lines" feature in subtitle edit. However, I am currently seeking a way to limit the merging process, allowing it only when the merged lines are shorter than a specified duration. Furthermore, I aim to avoid merging lines if the resulting merged line would end up within the "nobreakafterlist."