Mongoose query for subdocuments

I have the following scheme; its a conversation scheme with as subdocument structure a username and enabled or disabled state;

conversation = {title: "title", 
users: [{"name: "a", "enabled": true}, {"name: "b", "enabled": false}]}

I want to select all the users that have an enabled state set to true. I found that $elemMatch in projection does just that, but only returns the first element... Putting $elemMatch in the query parts does not do anything...

Any help is appreciated