I started to try CUBA first with cuba-studio-2018.3-8.1.tar.gz in March 19 and looked at the web based UI for a couple of hours and stopped playing around. Now second try with the IntelliJ version cuba-studio-2019.1-12.3.tar.gz.
I declined after first startup to use the trial premium version and asked myself where to find any UI builder tools (for screens e.g.)? I suppose they’re not part of the free version?
Next problem is I can’t (and I would say I never did it before) switch to trial version to get a real impression of the studio version 
Message is “CUBA Studio Premium trial subscription is not available: you have already expired trial license”.
Hi Rainer,
I’ve issued a trial license key for you. Please check your email.