I’ve filed a “wish” bugreport for “Act as filled” functionality for zones
Feel free to add your vote.
Would it not suffice to add zones to the “Render” tab so that zones could easily be toggled between visible and invisible? Personally I think I would prefer that to a “act as filled” flag.
Yes, that would be good-enough for me too. And apparently it’s already implemented (see left toolbar)
Ah yes, there it is. I keep forgetting about the left side toolbar. I thought the feature was already implemented as I’m sure I’ve used it before. The first place I looked for it was in the “Render” tab but when it wasn’t there I assumed I was mistaken.
Yeah, I also looked in the “Render” tab and didn’t find anything 
I think it would be a good idea to move all the rendering buttons to the “Render” tab from the toolbar. Besides some functionality is currently duplicated: you can control ratsnest lines visibility in both places.
It does make some sense to have zones separate as it does still render the zone just not filled, which is a good idea. I’m not sure how useful the “outline” mode is for zones though.
Anyway, I’ve added a wish bug asking to combine visibility buttons in one place, let’s see what people think.
I agree, “outline” mode for zones is of no use for me either. Besides what “unfilled” is for zones is “outline” for vias and tracks 