Ok, this proposal nails it down very precice. Thank you @calmh!
That seems intuitive to me, but on the other hand…
…I’d like to not have a (reddish nagging) button on the Send-Only folder for overwriting/revert changes on a Receive-Only folder.
Changes on the Send-Only folder should always (and silently) be overwritten or deleted on the Receive-Only folder. I’d like to have the Receive-Only folder to never send/overwrite/anounce any files/folders to other devices. Which is most likely this:
This is mainly my point of view for this topic and I don’t add any other “what I want is…”, because I made it here already here and here, and ppl. here also wrote, what I wanted to say.
Thanks again @calmh for your constructively summary of all our thoughts and words.