Be able to edit all rows even before the main entity row is created

A feture requested by @JamesGent , maybe with a flag that you can enable from the dashboard (similar to the Developer Mode)

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Start by reviewing the dashboard's Developer Mode setting and the row-editing flow. Define how a flag should allow every row to be edited before the main entity row exists, then verify the behavior for both enabled and disabled settings.

Written by the indexing model from the issue text.