Prevent tables/checks being opened on two different terminals at the same time?

[Stefano]

Is there a way to prevent a table or check from being opened at the same time on 2 different terminals?

[Rob]

Hey, @Stefano Preventing two terminals from opening the same check simultaneously is not possible.
If two individuals make alterations to the same check, the modifications will get synchronized across their respective devices. However, if synchronization fails, a pop-up message will appear. 
We are constantly enhancing our systems to improve synchronization, but currently, we do not have any plans to enable the workflow you have explained.