With a templated app such as CI Uncover, you cannot restrict user access to a certain page.
However, a workaround is available:
Navigate to the app store and install the app again
After following the prompts, PowerBI will recognize that you have previously installed the app and prompt the following. Select ‘install another copy of the app into a new workspace’ and choose an appropriate name:
Input your user access settings as seen in the instructions on this page
From within the new app, select the ‘Update App’ button and proceed to the second tab, ‘Navigation’
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