Exclude-filter in search

Use case: While using the web UI search I want to exclude results affected by incident "IM1". We mark the incident in the misc info, so I am able to list the results affected, but I cannot exclude them.

Syntax could be for example "-IM1"

Workaround now is to find the non-affected SNs from exported data and enter them in the search filter or use external SW for the search.