Unable to see designers

Hello,

I installed CUBA Studion on Arch Linux (i3wm, JRE bundled with studio). The problem is, I am unable to see any of the designers, i.e. Entity Designer, Screen Designer, etc. It just not shows up, screenshot attached
image

So, my question is: should I activate it somewhere or is it a bug on my environment?

Thanks in advance.

Sorry, my further investigations revealed that this is a premium feature. Could someone confirm, please?

Hi,

Yes, visual designers are enabled only if you have a license or if you have a trial period.

In fact, Studio had to offer you a trial subscription each time you open a CUBA-based project, until you rejected. Have you seen a notification about it?