Multiple databases


I’m looking to create a “power system generator”. Basically, you select items like “switchboards” and “lights” and “cable” from their seperate databases of items. Each of those items may have one or several “modes” or “settings” for that item, which affects how the different items interact with each other.

Anyone with any clues on how to get started with this?

I can build a basic page but this is getting beyond my knowledge.