How do I add this kind of timeline with zoom button to my Neatline exhibit? The only choice of timeline for Neatline exhibit is Simile and it doesn't look like the one on this page:
To have this effect in the current version of the plugin you would need to create a custom theme for an exhibit. David wrote up a nice post on creating these at http://www.scholarslab.org/geospatial-and-temporal/theming-neatline-exhibits/. There's a theme template that you can fork at https://github.com/scholarslab/neatline-theme-template to get started on this...