Nothing to that order has changed in OnCommand 5.0.
What you can do is select the object type you would like to ignore and click on delete.
Like a volume, qtree or aggr etc.
If its the entire filer you can delete the filer and stop monitoring it so no events related to the filer or its child objects are generated.
You can either use the Web UI or dfm volume delete <volume name or id>
similarly for filer, vfiler, aggr, qtree and lun.
By doing this you dont loose all the history about these object that DFM has accumulated over time.
You can get them by re-adding using dfm volume add <volume name or id>
The same applies to filer, vfiler, aggr, qtree and lun.
Hope this helps.
Regards
adai