How to make an Indicator visible to only one stakeholder

An indicator can be made visible to only one stakeholder when the stakeholder is made "personal" to a particular stakeholder.

How to make an Indicator visible to only one stakeholder:

Click on Current Situation in the ribbon bar, and subsequently click on the Indicators button.
In the left panel, select the indicator that you want to adjust.
With the indicator selected, locate the checkbox named "Personal (linked to Stakeholder) in the detail panel on the right.
To make it visible to only a particular stakeholder, select this checkbox. A stakeholder selection box will appear.
In the stakeholder selection box, select the stakeholder for which this indicator should be visible.

Notes

The indicator will only appear in the top bar
When an indicator should be personal to multiple stakeholders, you will need to duplicate the indicator.
Indicators that are personal, can use the TQL ID parameter for Stakeholder clauses. I.e.: SELECT_NAME_WHERE_STAKEHOLDER_IS_ID, similar to SELECT_NAME_WHERE_INDICATOR_IS_ID.