The only solutions today I have , is to add manually the documents...with I click on the M icon and the option "source control > stage changes in "xxx"

Yes it's exact. I would like to change only the selected cell not others background but I do not want to change the moving cell !

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Yes, I'm on real devices : iPad, wifi connected, iCloud signed..."check if the container is pointing towards the correct iCloud container", could you explain in detail? the container (NSPersistentCloudKitContainer) is towards to a container in cloud, all my devices are synchronize well...iPad/iMac/iPhone