Unfortunately, the online help does not support index-entry jump-in like the local HTML help does. This is the mechanism that makes the whole keyword - context help do it's magic and losing that makes "online as primary" help a no-go. This is why we implemented the whole - local-first, but links to the online version structure you see now. If we had been able to get all the features of the local help in the online version - we'd probably be online only by now.