Structures can have as many "Floor Plan" entries as desired.
Provide a name
Floor 1
Floor 2-5
Floor 10
etc.
Provide a floor plan image(s) and any other documents
Sometimes, a floor plan document may not be readily available.
Here are some creative options for getting floor plans for your buildings:
BEST: Ask for a digital image from the building owner/architect
Preferably an image that can be zoomed in (SVG) and maintain readability
But one that is not gigantic and too overwhelming to load and scroll
GOOD START: Get a copy of the "You are Here" floorplans during a site visit
PRO TIP: take a photo of the "You are Here" diagrams as a placeholder that you can always delete once you get a better image, but at least you walk away with something!
And if you really need to have a floorplan more customized to your needs, you can create one yourself:
Use a 3rd-party app on your phone to create a rough floor plan on your own
http://www.magic-plan.com (Magic Plan requires a paid plan, but it is really pretty awesome and feature rich. You should check it out.)