Is a custom time-varying attribute available in Modern UX?
Currently the custom time-varying attributes are not available in the modern UX.
When this type of attribute is created it does not have an API Alias field. If there is no API Alias it will not be available in MUX.
Release : 15.9
Component : CA PPM SAAS APPLICATION
At this time, per documentation
All attribute data types except the following are available for configuration in a grid:
Functionality for this is may be available in a future release.