I agree, every thread on the matter is hard to wade through because of thread creep.
I searched YouTube instead. A few options, but one was the best by far (showed a clear screenshot of the website you need.)
Not sure what all the cloak and dagger is at this point. Fear that the rug will get pulled out I suppose, which I guess is reasonable. I have never found clear step by step directions on the matter here, just hints on how to google it. I'll play along, and just say if you search YouTube, the best tutorial is one of the top hits. There is one that gave an obsolete website, so just try another if you happen to go there first.
I got my 1054 a few days ago, and achieved your goal with no problems.
Hints I've gathered here:
When filling out the fields in the website that will not be mentioned here, erase the entire field (there will be stuff in it already, and even if parts of it are part of the stuff you want to enter, I've heard you still want clear each field entirely before typing in your info)
Follow the DSER advice. There will be a DSFR option that looks right, but it includes a feature your scope can't do in hardware. I think its been shown to only be problematic if you try to use that feature, but rather than add the complication, use the DSER code. It won't be one of the choices shown, but it is the one you want.
Another possible point of confusion. I used my smart phone to do it, and when the window with the code popped up, the first batch of digits was only visible when I tilted the phone into landscape mode. Confused the crap out of me at first. I advise doing it on a PC to dodge any such confusion.
Good luck!