How can I add another status bar to an app?

Hi. I’m trying to utilize the the existing status bar code to add a second status bar to a LibreOffice app (let’s say Writer). Any advice on how I might do this simply? I’ve found I can edit the existing status bar by editing the statusbar.xml for a given app, but I don’t want to replace the existing bar, just add a second one in which I will implement additional functionality.