[scribus] How to find all objects with overprinting?

[Václav Šmilauer]

Hi everybody,

I just had a problem with printing company because an object had 
overprinting enabled. Is there a way to find all objects with 
overprinting? For now, I go one-by-one. I am also aware of 
https://bugs.scribus.net/view.php?id=11061 in the tracker, but I am 
asking for a quick help until overprinting check is added as an option 
to pref-gliht verifier.

Thanks!

Vaclav