How to remove the add dashboard/external application option (+ tab) within WCC

Document ID : KB000124804
Last Modified Date : 16/01/2019
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After logging into WCC, we have the '+' tab allowing the user to add his own dashboard or add external applications.
How can we remove this option?
This is controlled by following WCC0004 policy "ConfigurationControlDashboardManagementAccessDefault'.
You can include the users/groups that require this option.
If users/groups are not listed, then they do not have this option within WCC.