>XSapp gives me a 404 error.
404 would seem to indicate that the URL is wrong (check for typo - including case), the content isn't active (perhaps an error during import) or you don't have authorizations.
> I do not see the "properties" for XS Properties as in your screen shot.
That would seem to indicate you are also running an older version of the HANA Studio. As the HANA Studio is backwards compatible you can upgrade just the Studio even if your HANA Server is SPS06. However this thread was talking about opening the XSApp Site design via the Studio and the Studio's automatic assumption of the 80XX port. A 404 error wouldn't indicate the same problem. Perhaps describe your Error and URL in more detail.