Hi.
To see realtime events in the log viewer you'll have to make sure the ASA is logging at the proper level to the ASDM application.
you'll have to go to configuration->device-management->logging, make sure "enable logging" is checked. then logging-filters->select ASDM, click edit select filter on severity, and decide which logging levels you want to forward to ASDM.
once done,
you can go to monitoring tab->logging-> select logging levels you want to see-> view.
once in the view, you can still exclude which logs you specifically want to see or filter out.
Regards,
Fadi.
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