Which file do i need to edit to edit the test execution

Hi,
Which file do i need to edit to edit the test execution. The current config is running with 2 users but i want to exert more load. Can you guide how to do that or is that a change i need to make via the jmeter ui? Thanks!!

Start by locating the current two-user test-execution configuration in the repository and checking how JMeter load or user counts are defined. Confirm whether increasing the load belongs in that configuration or through the JMeter UI; done means documenting the exact location and steps.

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