You could even do it without a Microflow. Create a page that has a Data View, with a User object as its data source. This will then be the caller of the page, automatically.
You can then add a button to the grid that contains all your users which refers to this page. By making that the default button, single or double click will trigger that action.
These kind of topics are also part of the introduction course of Mendix, which I could recommend.