Scania mega 12.3
You can set several settings (content, customfields) for parent product. Childs of this parent will basically have the same settings as the parent inherited until you overwrite.
One of the hugest advantages is stock control ability.
Use customfield to display an image or image list on desired layout position.
Customfield image allows to display any of your media images, while image list provides a preset based on list in customfied prototype.
See for details be > Custom Fields > Image list