Make Public Dashboard Action not available

Document ID : KB000104042
Last Modified Date : 08/08/2018
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As per Vantage Documentation Chapter "Private and Public Dashboards" it should be possible to make dashboards public:
I can't find "Make Public" under the available Dashboard Actions. What am I missing?
The "Make Public" Action is available with VANTAGE WEB CLIENT 14.0.4 and above.
Older Versions don't have this action.