Does Processing have a step by step executor?

Does processing have a mode in which code will be executed step-by-step, with an indication as to which line the executor is on, so that I can more easily debug? I am thinking of something similar to

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debug on the menu. you can set break points and step as you want. is that what you mean?

In PDE the Step and Continue commands are available if you use the menu item Processing > Debug > Enable Debugger

Keep in mind that this is a Java debugger, and is available for Java mode – not (for example) Python mode.