Hi,
Here is an RBZ file you can install from SketchUp:
i3d_active_section_in_scene_finder.rbz (9.1 KB)
Here is the Toolbar Button Icon:
SketchUp Extension: Active Section in Scene Finder
Now you can quickly locate one or more scenes where the selected section plane is active with the press of a button.
I have improved the code significantly… Let me know if you run into any bugs.
Cheers!