Persist result data / set data manually / import data from previous runs

This is a bit of a broad topic, but essentially it’s about setting the data in a workflow during development.
The biggest problem I have right now, is that the data of a workflow execution is lost after I refresh the editor / or go to another section, and if I’m using a webhook, I first have to execute the workflow / node again, even though I have execution data from previous runs. So there should be an option for each node / the whole workflow to import / restore data from previous runs (if it matches the nodes ofc). Ideally there should also be an option to import data manually for testing. Sure, you have to make sure that the data is valid, but sometimes pasting data manually is easier than triggering an external event.