2 short paths:
(1) Install openSUSE with some official desktop (GNOME, KDE, XFCE, LXDE) which will include a DM that lets you choose the session type at login; then add the ‘enlightenment’ package (and its auto-selected dependencies).
(2) Install openSUSE with Minimal X; after install, login to ICEwm, install ‘enlightenment’, change the sysconfig setting to ‘enlightenment’ (your screenshot shows you entering ‘E17’); then log out and log back in - whamO you’re enlightened.