How to set a default connection for a PostgreSQL project?

[patrykpalej]

I have a project in DBeaver using PostgreSQL. I have a couple of sql files in the project and for each of them I have to set the connection separately (SQL Editor -> Set active connection -> postgres). Moreover, when I set it, after some time and restart of the program it's disconnected again.

After trying to run an sql file I get this:

So I need to go here and select the connection:

Is it possible to set a connection in a way that it persists over time and multiple sessions of working with DBeaver?

I'm using Ubuntu system. I have checked the option "Auto-sync connection with navigator" but it doesn't work as expected.