No - there is no such option.
You can flag her as non-accompanying (meaning she's not coming with you now and you will sponsor her later) - but she still need to do the medicals, get PCCs, prove you're common law, etc.
In which case, there are no benefits to that option over "accompanying", from what I understand, the only difference being that If I chose "accompanying" she could come with me now without the need to go through the sponsoring path, basically?
Again, I don't know how to thank you guys. I think I will e-mail IRCC and explain the situation.
I would just like to clarify one last thing. I'm really worried that the attempt of adding her now would end up in a risk of losing the PR altogether for both of us, including the current COPR. Is it confirmed that in worst case I will just not be able to add her now, but still will be able to use my COPR as 'single' in worst case?