There is a custom page that I created and shared with all the teams here. It has the 'custom list' app in it. The weird thing is they are not able to add/remove columns to the page. The button is greyed out.
This is working as designed. Only the administrator that created the the shared page with the custom list is allowed to add or subtract columns. Please refer to the help pages for the Custom List app at https://docs.ca.com/en-us/ca-agile-central/saas/custom-grid as well as the note on that help page:
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