Fetch multiple collections with mongoose

Currently using node.js along with mongoose and express. I have two collections in my MongoDB and I can successfully retrieve data like this:

ActivityList.prototype = {
  showActivities: function(req, res) {
    point.find({}, function foundPoints(err, items) {
      res.render('index2',{title: 'Credits' , points: items})
    });
}

These data can be treated in my index.jade like this:

form(action="/asdad", method="post")
   select(name = "item[point]")
   each point in points
    option(value='onlytesting') #{point.Activity}
  input(type="submit", value="Update tasks")

As you can see I am using this to fill a drop down menu.. My issue is that i want to fill multiple drop down menus with data from other collections also.

The page is supposed to be my index.jade, such that a user is presented with multiple drop down menus which will be pulled directly from MongoDB.

My app.js calls:

app.get('/', activityList.showActivities.bind(activityList));

That works just fine, but I want to be able to fetch other data also with the "same" get..

Does anyone know how this can be accomplished? Thanks for any tips