As far as I know is is not possible to zoom vpreferrabvly via mouse wheel into a floor plan. I am using it for vessels which have very big and long plans. The multiple floor option unfo brings not a big advantage here. Please make it possible to zoom via mouse wheel into the plan like in google maps with the markers scaling accordingly automatically.
In the Style tab, in the plugins library, in the "Advanced" category, you'll find 2 new plugins : "Zoomable Floorplan - Main Tour side" "Zoomable Floorplan - Floor side"
Add the "Zoomable Floorplan - Main Tour side" plugin in your "Main" project, the project that will contains the scenes.
Add a "Website box" plugin in this project .
Either use a dedicated plugin, or the 2 options of the "Zoomable Floorplan - Main Tour side" to display the "Website box"
Use for example the following URL to display in the "Website box" : "./floorplan.html"
Build the tour
At this step, the tour will display a 404 error in the website box
Save your project, and start a new one
In the "Build" tab of the new project, use the same directory as target, but use "floorplan.html" as filename.
In the "Tour" tab, add the floorplans of your "Main tour" .
In the "Style" tab, add the "Zoomable Floorplan - Floor side" plugin
In the Spot style, choose the action "Zoomable Floorplan - Floor side/Load scene in main tour"
Add your spots on the floorplan.
For each spot, enter the ID of the scene it should load in the "Main tour"
Build the tour
Display the main tour
Now the website box displays the "Zoomable floorplan", and a click on each spot will load a new scene in this tour
Tell me if it works in your case, and tell me what you think of this temporary workaround .
I already can tell you the following Pros and Cons. Feel free to tell me your add-ons to this list : *Pros*
Zoomable floorplans
Polygonal spots available on floorplans
Many ways to display multiple floorplans (combobox, menus, etc, etc...
*Cons*
2 projects have to be maintained at same time
The floorplan project does not know the scenes fro the main tour. You have to find the IDs in the main tour, and set them by hand in the "floorplan" tour
The "current" scene can't be displayed as a bouncing/hilighted spot when opening the floorplan
The "current" level/group can't be displayed when opening the floorplan