Split subtitle
Split the displayed subtitle. Edit the text and move the separator
(using buttons or PgUp/PgDn keys) to determine which text will go to
which subtitle. The subtitle will be split at the point in time
determined by the Split Timestamp. The result will be 2 subtitles:
- First subtitle:
- Text: all lines above the separator
- Start timestamp: start TS of the original subtitle
- End timestamp: selected split point
- Second subtitle:
- Text: all lines below separator
- Start timestamp: selected split point
- End timestamp: end TS of the original subtitle