How to pass pipeline parameters when using path filtering ORB

I want to trigger a pipeline using the pipeline API and i want to pass a pipeline parameter when calling the API. I was trying to simulate it using the CircleCI UI. the console has a button “Run Pipeline” and you can pass a parameter as an option. i passed a parameter defined in continue_config.yml but i got an error - “Unexpected argument(s): my-parameter”. We are using path filtering ORB. Could anyone let me know how to pass a parameter when using path filtering ORB?