These Events are not available in MS FS 2020 or X-Plane.
These Events are only available for aircraft that use C++ gauges with mouse rectangles configured to trigger an event or custom code.
Aircraft that only use XML based gauges will not show any Mouse Click Events.
How To Use
Mouse Click Events can be assigned in Snippets or State Configurations in the normal way, or used within a Bespoke Event or a Lua script.
Mouse Click Events can be viewed in Detective or Lua, by clicking "Mouse Clicks" in the Events area. The format is the gauge name followed by the actual file containing the gauge.
Many gauge names will repeat, however each one of them is unique and will represent a particular mouse click spot for the gauge concerned and thus perform a different action.
To use a Mouse Click Event, create or use an existing Bespoke Event. Click the Send button with the required Mouse Click Event selected. You will then be prompted to chose which mouse action you wish to send e.g. LEFT_CLICK_SINGLE represents a single left mouse button click. Then click OK.
Note, when using a Mouse Click Event directly within a Snippet or State Configuration, it will be sent with LEFT_CLICK_SINGLE. If you need other mouse actions to be applied, create a Bespoke Event or Lua script.