I believe you have to import these using the Unified Communications Manager and bulk admin there, and they'll sync in.
It's going to want the BSSID, so if you have multiple SSIDs you may need to add each one if the BSSID differs.
I don't think you can remove them either once you've imported them unless you go database spelunking. There's a "Deactivate" but not a delete.
I tried this and it was not worth the time of the overhead without further work to automate the bulk spreadsheet and watching for changes, IMO.
Thanks for your response.
the AP are already synced. The issue is how to ASSIGN ERL to Access Point in Bulk if you have a large number of Access Points (like 3000).
In the CER admin Guide we can read:
If you must make changes to a large number of Access Point-to-ERL assignments, you can export a file, make
your changes in the file using a spreadsheet, and then reimport the file.
We can assign ERL manually.But it is not practical if need to assign ERL to thousands of APs
For the Delete of the AP. Once you deactivate the AP, you can see the Delete option