If the option is not available, as I said before, changing one value to another may allow it to be displayed in the settings page. Much like how I, and many others, changed one simple number from a 1 to a 3 or 4 and it switches the option from "auto high beam" to "glare free lighting". It's in there, you just gotta get it to show up, basically.
Perhaps I use my words wrong. You're not "installing" anything, you're simply (and I mean simply) changing a number, or numbers, to elicit a response from the computer in the truck. There's no installation or anything like that, this is all within Ford's installed software. These are the changes that we're making!
Okay, so looking at this and these are your values - I would do the following:
726-26-02 0100 0000 0055
726-50-01 010A 0000 00E7
Always back up your factory values (at least you have a picture is what I also do so I can revert manually as well.) Change what's in bold/underlined above, just like it says. Leave everything else how it is. We're only changing what we have to. If there's a letter, that's fine, we're just replacing whatever is in the spot with what's shown in the chart. That's all. No "installation", just a software change.
I understand that, and this is the closest I think we're gonna get according to the chart we have access to. If you wanted, I can send you my as-built (stock/factory) BCM configuration file and see if that may enable it. Although I am unaware of what other changes may be present. You could look at it line by line and take just what you need, as well. I think that might could be the easiest, but again, I don't know what else is changed from the NA market to yours.
I'd be hard-pressed to believe that Ford changes anything that drastic to have a completely separate headlight produced, but I've been wrong many times in my life. I think we need to work in small steps, get one thing finished and working, before moving on to another. I bet it'll work, we just gotta figure it out. Again, an easy thing to do would be for me to send you my confirmed good modified files for each module and see if it works in your truck. Load them into your modules and see. If not, simply restore your old files and you're back to where you were.
Let us know how it goes!