This is the window for translating subtitles in other languages. It contains 2 grids, one for original and one for translated subtitles, so the user can see the translation and the original at once. There are also multiple toolbars.
The translator window contains 2 grids for subtitles. They can display first or second subtitles, according to the configuration. The grids contain 4 columns:
Both grids support editing. When a cell is clicked, the appropriate cell in the other grid and also in the main editor is selected. The user then can exactly determine which subtitle in the one grid belongs to which subtitle in the other grids. This is useful for correcting bad timing of subtitles that can't be corrected automatically.