Reversing small part

[Elusien]

You could use the Time Remap filter introduced in Shotcut 21.05.01:

Time Remap Filter

The Time Remap filter is the first filter that allows altering the timing of the underlying source clip. It maps clip time to output time. [image] Limitations It can only be added onto clips with NO B-frames. If you try to add it to such a clip, it shows the Convert to Edit-friendly dialog. A proxy clip can mask the above check for B-frames and then export may be very slow or give bad results. However, it may also be a very convenient workaround for the check and dialog mentioned above if you…

I would save a copy of your MLT project file before using it though, just in case. I tried using it recently and Shotcut crashed. It worked OK the second time.