Action "Attach Fields"

I think of an action which would bring all fields of an entity to the stage.
Currently, we have to add them field by field via either RulesCondition or RulesConditionalIf element which makes algorithms bigger for no reason.

UPDATE

As a workaround for Commrect Products and Nodes you can add single data comparison: check Product type/Node type and you'll get all the fields on the stage.