Like it says in the title, it would be nice to determine whether the draft list filters are visible, similar to app.isActionListVisible and app.isDraftListVisible. app.showFiltersList() and app.hideFiltersListI() would be welcome as well.
Use case is being able to further manipulate the Drafts window using actions and/or send the visible state of each list to Keyboard Maestro so I can resize it, duplicate it, move it around the screen, etc.