Convert or extract a portion of the video

[StoopidoMan]

Is your feature request related to a problem? Please describe.
I want to convert or extract a portion of a longer video for example from 00:17:01 - 00:18:07

Describe the solution you'd like
you choose the option to extract a portion of the video, and it shows you two fields to enter the time and then click ok to convert

Describe alternatives you've considered
none

Additional context
that's it, having a preview would be cool