title: How to set new options on timeline Vis.js when zooming in and out the timeline?
body: <p>I wanted to know if there was a possiblity to set new options on the timeline when zooming in and out the timeline ?</p>
  
  <p>In fact, i have elements that are stacked when i'm in month view, but when i'm in year view, i want them not to be stacked (set options stack: false on the timeline).</p>
  
  <p>Is it somehow possible to know in which view we are and to set new options ?</p>