Customize Run / Debug with Command Line Arguments

Having the ability to quickly run and/or debug an individual test has been absolutely fantastic and in the case of tests and benchmarks, this is very straightforward. It would be nice though if the run/debug could be customized in some way within examples/ (and I'm guessing bin/ too?) where the main function could reasonably expect command line arguments.

I'm not sure what might be the best way to approach this. I can see a two main options:

1. Adding 'Run with args' and 'Debug with args' to the list of possibilities. Four different run/debug options could become a big cluttered, but as this would not apply to most tests / benchmarks, I'm not sure this would be a big issue.
2. Adding a 'Customize' option which would create a pre-filled entry in launch.json allowing for the task to be run this way (and customized). Perhaps this could apply more generally?

Start by tracing the existing run and debug actions for individual tests and benchmarks, then inspect how examples/ and bin/ targets are discovered. Compare the proposed Run with args, Debug with args, and launch.json customization approaches; done means one chosen behavior is clearly specified and supports command-line arguments without unnecessary action clutter.