Instanciating boxes

After working several days with the platform, we've found some difficulties on instanciating the boxes. It's a good idea to use the instance box to instance the class box you want, but the problem comes later, when you need to copy and paste all the ports.

Would it be difficult to generate automatically the instanced box from the source box?. It could be great to have a little system to generate via menu or dragging the file to the layout. Like a "refactoring" or a "extract methods from interfaces". Something that in the end helps the implementator. We can talk about this.