Contains the application's Main Menu. Most of the Toolbars are docked here. You can choose which ones are visible, undock them or dock them in Control State Panel.
Shows the list of the subtitles. The highlighted one is the currently edited subtitle. When Presentation Mode is active, the video is also shown in the currently edited subtitle area.
Shows the subtitles as a timeline. When audio is available, shows the audio waveform and/or audio spectrum. Video thumbnails or the filmstrip can be shown here too.
Shows the relation between the length of the subtitle's text and the duration of the subtitle (if set) or the progress of the current time when timing subtitles.
Shows various status information, like editing position, file saved status, errors discovered, etc. Here you can also see hints when hovering various menu items or application controls.