Feature Request: Move vertically only specific time ranges without cutting or splitting

[Petey403]

First of all, thank you for your amazing tool — it's very powerful and useful!

I'm wondering if it's possible to implement a new feature to move the subtitle vertically (up or down) only for specific time ranges, based on timecodes, without splitting or cutting the subtitle file.

I know it's currently possible to do this using --cut_merge and then combining subtitle parts manually. However, this requires extra steps and tools, and creates multiple .sup files.

It would be very helpful to have something like this:

SupMover input.sup output.sup --move_list "00:10:00.000-00:10:05.000:0:60,01:00:00.000-01:00:03.000:0:-40" --timemode timestamp

This would apply a vertical move only to the selected timecodes, keeping the rest of the subtitle file untouched — no cuts, no merges, and no external tools.

Is this feasible to implement in a future version?

Thank you again for your great work!

[MonoS]

I can think about it in the future, but what you are asking is more akin to a GUI application that a CLI one, i can try to implement that, but my priority right now is to make a working implementation of the cut_merge functionality for which i'm thinking about revamping the internal working of my tool, i'll update this issue when i will have something.