Open Tickets not syncing across devises

[ScottA]

Hopefully someone can help out

I have 2 handheld tills systems - both work perfectly fine independently however they do not sync with each other unless I manually select the 'sync' button on each devise - in the settings menu

 

But i have to do this every transaction if i want to void any issues. 

 

Can they be set up to auto sync after each saved action? I read that they can but cannot find this anywhere

 

Thanks in advance :)

 

Scott