There are four hosts for the Product Configurator: Order, Quote, Job, and Engineering Workbench. You will not be able to do it from Part at least as of today. Jim is probably one of the best Configurator guys out there.
There are non-configurator ways of adding a part too, especially if you’re not interested in the MOM like a BPM on the Part Duplicate method.
So, are you the person who will be adding parts?