Auto Sync between devices (in the background)
directly after any edit and close all related libraries...

reasons:
1.avoid waste of time
2.avoid waste of mobile data
3.make comfortable to use yours memento libraries
on another device in & out of your wifi

explain:
if you use memento databases on more than one devices
and if you have many related libraries which ones you have edited on 'first' device
than,
if you want use these libraries 'outdoor' on another device
this have to synchronize first with memento cloud...
otherwise you have to update all of them 'step by step'...
- this process waste a lots of time and waste your mobile data as well...

Auto background synchronization process all of recently edited libraries
on all of connected to same memento account devices
will avoid waste your time and mobile data...
in case,
if you have edited any of related library on the 'second' (or any other connected to same memento account)
that should be automatically synchronize at any switch/connect to your saved wifi...
only need to be marked to at create process in the setting window of library
- it make sense (?) - what do you think...?