KDE 4: Never hide system-tray icons, but keep hiding 'notifications' after short delay?

I don’t like the ‘hide’ array on the system tray. I never hide my icons there. There is an icon-by-icon setting to hide/show but this is a little labourious. However, there currently doesn’t seem to be an easy way to show all icons, but, at the same, hide pop-up notifications after a short delay. Does anyone have any ideas on how to implement this?

openSUSE 11.3 KDE 4
repos (STABLE): packman, oss, non-oss, updates, network, security