what do I have to add to the run config in the Launchpad to launch a run of a subset of ops of a job?

if the subset needs any upstream inputs, you will need to “inject” the input via run config as:

ops:
  first_ops:
    inputs:
      input_name: value: ...

ok! And how do I select what ops to run?

in the launchpad, you can select the ops here:

Thanks!