Une customisation de l'UI ça serait génial, le mixeur et le pitch ne me servent à rien, je préfèrerais une plus grande forme d'onde, pourquoi pas une nouvelle option pour cacher des infor de l'UI ?
To create GUI's nowadays is pretty hard due to the many screen sizes around. Providing features on this for users will make it more complicated. It will also make it harder for the development team to modify the gui in time. This is merely why most user options have disappeared in the gui in the last 20 years
If you don't use pitch there definitely is some extention of your skills possible. It could be worth to spend some time on this. Even if it is not something you will use often it may help to mix tracks that with default settings are are somewhat conflicting.