Custom Code

For more complex logic than the Property Trigger, you can use custom RPN code. The Custom Code object can both execute RPN code and also use its result as a trigger.

Learn more about RPN code here: MSFS SDK Documentation - Reverse Polish Notation

Attributes

Active On Start	Enabled: the code will start executing as soon as the missions starts Disabled: you need to activate this object during the mission, or use the Execute Once action.
Fire Once	Enabled: the object will deactivate (stop executing the code) when it fires a connection for the first time Disabled: the object will keep firing the connected events until it is deactivated
RPN Code	Custom RPN code to execute

Actions

Activate	Start executing the code every frame
Deactivate	Stop executing the code
Execute Once	Execute the code once

Events

True	Fires when the result of executing the RPN code is true (larger than or equal to 1)

See also

• For simple logic, use Property Trigger