Modifying a list from another plugin

I am developing a JWebsocket plugin that I intend to use for a multiplayer game.

The plugin receives a list of users who are online.

My aim is to take this list of users and put these users into a "constructs 2 list".

Now i dont know how to set the elements of the list from within my plugin.

here's what I want to do:

Acts.prototype.PopulateUserList = function ()

     {

          this.userarray = [];

          if (!this.websocketClient)

               return;

          console.log("Got user list into constructs runtime")

          this.userList = this.websocketClient.fetchUserList();

          for (var i=0;i<this.userList.length;i++)

          {

               array.add(this.userList.uname);

          }

                 // Now I want to access the list which i have created

                 // and populate it with userarray

                 // Basically something like this.runtime.list ?

     };

Any suggestions or help is highly appreciated.

Ok let me simplify.

From within one plugin, how can I get reference to another plugin object, and call one of its actions ?

Also how do I pass parameters for that action ?

Thanks

You should not do this, in principle. Simply expose the data from your plugin, and allow users to display it where they want via the event system.