How do I disable zoom functionality in a Neatline exhibit?

Hello all!

I am currently building a Neatline exhibit. Here’s the link: This might seem like a strange request, but I would like to disable zoom functionality in this map. Zooming in or out of the default map zoom of 4 causes the lines and circles that I’ve drawn to become disfigured, which spoils the aesthetics of this map. I would like to lock the zoom at 4, and not allow viewers to be able to zoom in / out of this map. Is this possible? How can I do it?

For more information, this install of omeka is running on reclaim hosting. I’m using omeka 2.4.1 and neatline 2.5.1.

Thank you!!