I need a way to replay an event with a modified payload

When my workflow yields an error, sometimes it's because my source data was messy. I want to modify the event payload slightly before replaying that event through my workflow.

Other tools — for example integrator.io — have an optimized flow for this use case.

As a workaround, I can edit the test event for my workflow, add the modified payload there, and send the event through the workflow. But this is time consuming when I get a lot of errors in my workflow.