Currently, if I want to copy an entire step from one configuration to another, I need to first delete or rename the existing step of the same name.
This causes heck in my step tree, because modifying or deleting the step changes references to it as well, which then have to be re-implemented.

Having to delete a variable before copying the new value up is just an inconvenience, but the ability to overwrite would make my life easier.

This would probably be an improvement applied to Repositories, Promotions, any other object can be copied between configurations.