How use Execute Workflow on cloud

Ah, now when I entered B and looked at “Executions” I see a successful execution, with the correct data. So the linking seems to work.

Is there any way to “transfer” this production data so that it is available in the workflow builder (as when using test data)?

As I explained earlier, my idea is to have a stable Slack verification workflow (i.e. should be in prod and active) but I might want to develop new sub-workflows (B) and have sample data available.

Any Ideas if /how I can do this conveniently?