Hi smartnetnyc,
First of all, thank you for using this plugin and thanks for you compliments!
I’ll try to answer your questions as good as possible.
1. You can disable the zoom feature by removing the event handlers from the medium size image, but that requires some programming in JavaScript. In what situation would you want to disable the zoom function?
2. You would have to use CSS to accomplish this. Depending on your theme it could be as easy as giving a margin: 0 auto
to the containing elements.
3. This can be done by using mouseOver events instead of click events. At this moment this requires some JavaScript kung-fu, but it could be turned in to a configurable option within the plugin.
If you want to change the JavaScript and/or CSS I’ll would advice to do this in different files then the ones that come with the plugin, for example by creating your own files and include them from your theme. This way you avoid losing all your customisations if you install an update of the plugin.
Hope this helps!
Kind regards,
Niels