I like that way too. We could have separate chapters for Radio, Recording etc. The only drawback is the fact that the manual chapter numbers will then vary between the targets, and as users tend to name only the section number instead of its name this might cause some misunderstandings. Not sure if that is too much a concern though.
I do though like the idea that you get a specific chapter for recording if your player supports that feature. People, and we tend to refer to numbering, but the manual being in draft/developing status atm those numbers can and will change anytime. My wish is that we could focus towards a future release where the manual stays the way it is and the recording chapter is e.g. chapter 5 for targets with that feature, and for the others chapter 5 is the plugin chapter (e.g.). This is not a big problem in my humble opinion.