Well, that's the trouble with a really versatile device; to offer so many options it must have a lot of options.
Seriously, to have a device that suited your personal vaping needs out of the box (and other devices that suited other vapers' personal needs right from the factory) would require just too many different devices to be practical. The solution to this dilemma is to sit down with either the manual or the software and learn enough to set it up to suit you. (Or do it with a friend who can do this sort of thing.) This is the "magic" of TC: once you have set your device up to suit you, you can forget all the technical stuff and vape on.
I did the "swot the manual" for myXvoStick rigs (my first TCs - it took a couple of hours) and for my iStick TC40W and AEGIS rigs (since I had the basic idea, these took about an hour each to understand the manuals and do the setting), but currently have no idea how to reprogram any of them. I'd have to do it all over again if I wanted to change anything. Fortunately, the need has never come up since I first did all that. I love TC vaping.