iCloud storage how reconnect media files?

[HNigg]

I converted the reunion system from dropbox to iCloud.
This so far worked well on Mac, iPad and iPhone
But the connection to the multimedia folder did not work. What do I have to do to reconnect it? (any tutorial about this?)
Herwig

[Bob White]

Click on the question mark, lower left, then do a find on "iCloud drive".... Lots of info there about working with iCloud.