Do we have notifcation similar on OMU 8 for OML 9? Look like very terrible notification on OML 9 for migration from OMU 8.
Notifications in OMU 9 are the same as in OMU 8.x. You can upload existing notifications from OMU 8.x using the 'opccfgupld' tool.
What exactly do you mean with "very terrible notification on OML 9"?
I fail to see how filtering is in any way related to notifications (unless you are of course not talking about OMU notification mechanism).
OMU 8.x does not come with a "ovonotifgui" command. Where did you get this command and what exactly does it do?