Now that we have the ability to duplicate actions, I think the best behavior would be to change the level of the duplicated action to be "-----" rather than just duplicate the original action's level. The current behavior means that when duplicating an action when the game is in production will put the new duplicated action in the SGG in the same place, which will likely make the grid unbalanced, and will also allow players to start submitting the action immediately, which is unlikely to be desirable.
Now that we have the ability to duplicate actions, I think the best behavior would be to change the level of the duplicated action to be "-----" rather than just duplicate the original action's level. The current behavior means that when duplicating an action when the game is in production will put the new duplicated action in the SGG in the same place, which will likely make the grid unbalanced, and will also allow players to start submitting the action immediately, which is unlikely to be desirable.