Using HitFilm Express to make DVDs

So I have never done practically ANY videoediting. I am doing a video for my dad where he sells fireworks to help him out. I just bought a bunch of software, and I really don't know what I'm doing, but I'm not complaining, because I think I figured out the barebone basics. Anyway, I just have a few questions.

1. How do you put chapters into a video, because I am burning these to DVDs and was wondering how you can select between chapters since it is a mix of like 30+ videos.
2. How do you trim a video that you have imported, and just use the parts of it that you want? I am just using, for the most part, the middle of the video, so it would just be trimming the end and possibly some of the beginning.
3. How do you burn it to a DVD? I downloaded Ashampoo, but I am seeing some people say you need something that puts it in VIDEO_TS and AUDIO_TS folders on the DVD?

That's it for now. This is actually pretty fun, I'm just drawing a blank and not getting any results for putting chapters in on google using Hitfilm Express, which is what I'm using. I bought the youtuber version ($20 I think). Thanks in advance.

Edit: Issue solved. I found a program (that’s free for now, unless maybe used for massive production or has a certain limit of DVDs you can burn) called DVD Flick. It works great has a list of the different types of video formats that it will convert to VIDEO_TS and AUDIO_TS files and then will continue to burn to your DVD through a program called IMGBurn. Fair warning though from what I saw on the post about this app, JUST download DVD Flick, do not try to download IMGBurn. On the article I read it a lot of times has downloads with viruses. DVD Flick has it built-in. I will post a link to the download when I get to my computer. It is a great program. Definitely recommend.