Global CCS file in child theme improvement

I really like that i can add global CSS code in a Bricks child theme and have a live preview option.

What i really don’t like is that i’m not able to resize the left window with the CSS code. Don’t know if it’s possible, but it would be great to have a wider window, so i can see more and longer code. Also would be great if i could do SASS.

Bildschirmfoto 2022-09-03 um 22.18.25
Bildschirmfoto 2022-09-03 um 22.47.19