Yeah I went through the process of creating all that only to find Citizenship wasn't in the list of things to add. I've been using that ECAS page to try and login but it's still not letting me. I got the AOR Wednesday (evening) so am just assuming it will let me login at some point. At which point I'll post an update.I think we can't link to myCIC/gcKey account. We can only check the status using ECAS (https://services3.cic.gc.ca/ecas/authenticate.do?app=)
Not sure why there is a (significant) delay between sending AOR and adding us to their online system. Seems odd, but appreciate I'm one of the lucky ones whose AOR took 'only' 49 days. That said I'll probably try phoning them if I still can't login end of the week.
The process / website definitely doesn't make it obvious how to register in my opinion!