Creating new Product from Engineering Template in PSE?

Hello community!

I have a question regarding the Product Structure Editor. I see it is possible to create objects directly from the widget, and also it is possible to select a Template and also a 3D Part Template. Is it possible to add to that drop down list some Engineering Templates? if so, How can I add them?

I also get the same scenario for Engineering Release widget:

Thank you very much before hand! ^^