I am authoring some Blu-rays with content I AI upscaled from DVD. I used to use TMPGENC AW 4 for years on DVD, but didn't like it's Blu-ray functionality, plus it's really old, only supports MPEG2 codecs for Blu-ray....so I got Yuhan Blu-ray. The only issue is that I liked AW4's chaptering system, gives you a timeline and you can scrub and place chapters, easily for Intro and credit skipping, plus finding commercial breaks. It's such a chore on Yuhan as you need to put in the exact time. Been using VLC for this.

I have used FFMPEG to try and do this, but it spits out frame numbers rather than times.

is there a way I can get ffMPEG to give me keyframes or generate chapter lists?