Thank you so much Giulio.
I'm a SuperCollider user and, now that I am starting to experiment with Bela, something about its browser IDE, using it for SuperCollider, does not convince me.
I was therefore wondering whether I could not program SuperCollider with its IDE directly from the operating system's GUI without having to write code from the browser.
There are probably different ways to be more “comfortable” in writing code. Like perhaps writing code elsewhere (on my laptop for example) and then uploading the whole project to Bela...