Perhaps what Petr is expecting then is for the new object to set the state to some visible or the half-eye as it's called?

I don't believe this has ever happened to me while working, but lets say I'm working an engine part for my spaceship.

I want to assign the same style to this new part while I'm working - however, I've previously hidden all the other similarily styled objects to free up space to work specifically on this new one.

When I assign the existing (hidden) style to the new one, poof my new object is now hidden!

Now I have to unhide the objects, and rework the visibilities...

I can at least see how this would perhaps annoy folks to some degree?

If anything it forces you to make the style assignment as the last step to avoid this behavior.

Perhaps an INI setting can be added; "Maintain Style Visibility" or some such to give the option to allow or prevent this behavior.

-Will

PS - I see that you said using the dropdown avoids this - the question then becomes how well the difference is known about the dropdown?