This technical article documents a design change in UIM 20.4 related to the columns shown when in the Group tab -> View Alarms.
Steps to replicate this behaviour:
1. Access the OC -> Select the Groups tab -> Select a Group -> Select the Alarm View button -> Select the 3 dots for further options.
2. The edit columns is not available to modify:
Release : 20.4
Component : UIM OPERATOR CONSOLE - ALARM VIEWER
Working as designed in 20.4CU1, Enhanced in 20.4 CU3 and later
This issue exists in UIM 20.4CU1.
From UIM 20.4CU3 and later Group View Edit Group Columns is possible and irrelevant actions are removed from the 3 dots menu: