yuuzai

Thank you very much and indeed I found my answer.
I modified functions.js of the plugin and addded these after the creation of the mapOptions object at line 49 (plugin version 1.6.1).

mapOptions.draggable = false;
mapOptions.minZoom = mapOptions.zoom;
mapOptions.maxZoom = mapOptions.zoom;
mapOptions.disableDoubleClickZoom = true;