Yesterday I explored the new DNA features and found an option to link DNA results to the member in my online tree. I did so, successfully it said, including adding the link to all direct line ancestors of the test person.
Later, I synced my desktop computer with that online tree, but the DNA notation does not come over. I find it problematic to have different data on different sites. My home computer has more details and I consider it to be my master copy. The online tree may have less data after a sync, but it shouldn't have different data. I hope this gets addressed in the future.