My current standard/convention for naming database identifiers is using lowercase. CUBA Studio by default follows an uppercase convention. It is possible to override this setting and if so, how?
Unfortunately it’s impossible. We’ll consider it when implement https://youtrack.cuba-platform.com/issue/STUDIO-3939
Just in case: database names are case insensitive until enclosed in quotes, so it just a matter of taste, you will be able to query them both with lower and upper case.