[Swiss1000]

Another dificulty : name the backup and the "Syncronise" with the librairy name Please :

Mobile Sheet do not remember directory backup in relation with the librairy; so name the backup name with librairy name and date.
It becomes dangerous to gackup a librairy withe the same name frome anopther librairy.

To avoid confusions it becomes necessary to give a diferent name, in relation wit the librairy you are backuping.

"Default Librairy 2025.04.10"
"BowlingBlues 2025.04.10"
"ADNmusic 2025.04.10"

if destination could be wrong, the name will avoid unwanted restorartion ". "Mobile Sheet 2025.04.10" is a non sens : file extensions allready said the origine.

Idem for export librairy, etc..