Is it possible to make Aqua Data Studio connect to a certain database and open a query editior window for it on startup?
I have tried to find documented parameters to pass to datastudio.exe or settings to set on the individual databases (ie "Connect on startup"), but no luck so far.
Navigate to Server Properties -> Scripts tab and in case of RDBMS that lets you change the database using the use database, enter your database as in attached screenshot.
Now open up a new Query Window and the database of your choice is available as default. Let me know if this works for you.