Use second Mac+iCloud Drive while main Mac is on repair
I need to leave my MacBook pro on Apple service center for a warranty/recall service for about 20 days.
Apple Service Center will reformat and erase everything. They say is their practice and it can't be otherwise. That's OK as I have TimeCapsule and all. I also have 2 TB iCloud account and my Desktop/Documents is fully synced.
THE PROBLEM IS: I can't afford to be without working with my Mac for 20 days!! I live on it!
So my plan is to use an older Mac I have. Slower but yet pretty much functional, running the same MacOS Sierra version, create an user with Same AppleID, check iCloud Drive sync and keep working as usual.
THE ISSUES IS: No matter what I do, despite iCloud Drive being enabled, it show zero files on my iCloud/Documents Folder. Shouldn't it have synched al by now?
What I am doing wrong?
MacBook Pro with Retina display, iOS 11.2.6