Hi Hans,
Any metrics and insights created on the workspace will be available to all users with the proper
User Roles (basically Admins and Editors), when editing a Dashboard or when using the Analytical Designer.
There isn’t an option for sharing metrics and insights via User Groups, like there is for dashboards.
You can also allow navigation to Metrics, by going to the Manage tab > Metrics. Select the desired metric and click the button Sharing & Permissions. You can check the Visible to all users, which will allow them to navigate to the metric in the Manage tab.