When I start MS build-in Event Viewer, then go to Custom Views--->Adminstrative Events and right click and select "Properties" then all the parameters are disabled resp. read-only.
See attached snapshot
Why?
As far as I remember they were editable in the past. I could (de-)select e.g...
administrative events
configuration
custom view
editable
error message
event viewer
logs
microsoft
permissions
properties
read only
system administration
system events
tech support
troubleshooting
user interface
wevtutil
windows settings
windows tools