How do I trim a video using Handbrake?

I can't seem to figure out the solution to a very simple problem. I want to trim a video in Handbrake and keep the video as is (resolution, encoding, etc), just chop off the first few seconds, but I can't find out how.

Since I didn't get any answers here, for future visitors, the feature isn't very pronounced on the interface. Basically you click on the Chapters dropdown and select Seconds. From there, you can now set the portion of the video you want to trim. It's not really intuitive because you have to deal with the timing manually without any visual feedback but for simple trimmings, it'll do.

I recently downloaded and installed Handbrake on my Mac. I had the same question about editing. I ripped the entire movie and saved it on my Mac. Then I used QuickTime to watch the movie, taking careful note of the section that I wanted to copy from the film. I wrote down the time of the beginning of the section, plus the time that it ended. For example, the beginning of the clip that I wanted started at 1:10:14 and ended at 1:14:54. There are 60 seconds to a minute. Just figure out the beginning of the clip in seconds (4214 seconds) and the end of the clip (4494 seconds). Enter that information and you will have your section of the movie. Give it a different title than the source movie.