Query Historical events is missing from the APM 20.6 workstation.
Also missing from WebView
Documentation suggests to review Analysis Notebook but there is a requirement to see all traces/errors.
Release : 20.2
Component : APM Agents
The trace events are now stored in ElasticSearch and Workstation/WebView have not been enhanced to use that as a data source.
Live traces/errors will not be visible also.
It is possible to query the ElasticSearch directly with a URL in an on-premise deployment:
Using the search option, it could be possible to find errors that way
This is a guide for ElasticSearch search syntax from URLs
The DX dashboards based on Grafana would be the way to find more data by finding the ao_apm_tt index and making a visualisation of data from there.