We discussed it many times, people need it to check if the backup configuration is ok or to force the first backup now without waiting for the scheduled time.
Which is your scenario @jlibster ?
I did something similar on SME10 last summer @davidep , and in fact I did a validator to ping the remote share, display the availability, and save settings even if the remote doesn’t answer…why because you might have a host with wake on lan. The settings might are good, but the host is not awake.