I think in that case it is good practice for a manual to select one term and use that consistently, everything else will lead to confusion. It already has 
Curious, I played around with this a bit, and I was only able to see a maximum of 255 scenes in the Synth, even though the folder on my SD card contained 500 scenes. But when I delete the first 250, I then can see the second 250 scenes.
Maybe calling that slots it just confused me, because I took a look at the file system and the files, and I wrote a wish for changing scenes via program changes. Now, if the scenes actually were organized in slots, implementing that wish would be dead simple, but in fact there doesn’t seem to be a slot that can be referenced, right?
Interesting. I just tested this, and to me it looks like Macros are saved with a sound preset. Here’s what I did:
- created one init sound and saved it as “new”
- created another init sound, renamed the first macro and deleted one of the mappings in it, saved that as “new2”
- then I loaded “new”, checked the macros: they had the normal names, and two parameters were mapped
- loaded “new2”, and the macro had the changed name and one mapping only.
So if the Macro were part of the scene but not of the sound, that would not have happened, right?
Also, if the macro were part of the scene, and you change the engine, the some of the parameters the macro points to would no longer exist.
Interesting idea. And yet, grouping the modulations with the synths would have led to the same number of chapters. 
Indeed, now that I know what it means I can see that. 
I just expected these “limited options” to be in the same schema as the other modulations.