I don’t think you’re in the right thread, as your question is more about how to set up lovelace cards than using my calendar add-on. It also looks like you’re not using the add-on right now but the standard calendar integration. Regardless of what calendar integration method you use your issue is about how to get the data displayed in a certain card.
I suggest you ask around in threads about the floorplan card. One tip I can give is to look at custom button card too, you could create different zones/templates inside a custom button card, one of which could be the svg floorplan. There’s an extensive thread about custom button card and it has rich documentation.