Set input / output times of source to trim clips

[dudewheresmycode]

Adding the functionality to create in/out times or frames to trim sources.

Source: https://redd.it/6iy5eb

[Banjo-Oz]

I just discovered this program and it is great except for this one missing feature. I don't mind the long "load" time to import a long clip but I wish I could then crop it after importing, before exporting, rather than having to edit the video source first.