Ajax Zone Overlay - Selective Links

Hello,

I have followed the example code at tapestry jumpstart for the
zone-overlay example (Tapestry 5.4, RequireJS ). I have some zones with
hidden event links in my page which require this zone-overlay and some
zones which do not require it.Also since t:progressive display is also
treated as zone, a zone overlay is getting added to it. All these zones
are using eventlinks (not the progressive display). How can I make this
zone-overlay available only for the eventlinks which I want and not for all
Zones.

Thanks in advance ,

Y.G.