If I wanna change style attributes, I must select a object in Layout-Mode to change and save attributes for it's associated style.
If no object is selected, all Styles in Inspector are greyed out.
We need a way to edit Styles out-of-the-wilde and even multi-selection to change many Styles at once.
Imagine, you wanna change your entire Theme, - all Styles, from Arial to Verdana Font.
A terrible task if Styles-Editor don't get improved.