that screen (UI) is hardcoded, or in other words, can only be changed by the TW team, not the DLC team.
this is a very old request from players (since 2008 ish), so don't expect to see a Warband update with this feature. Maybe with Bannerlord hehe.
what you could do is create a workaround using modding tools. If you want that visit the modding subforum to learn more.