Fixing posts to top of page

I want to change my website theme to Intergalactic 2. But is there a way of fixing 3-4 posts to the top of the page, so that they always show on top, followed by latest posts.

I checked and the only way to do so (without coding) seems to be to use the Post Types Order plug in. But I want to confirm if there is any other way and if this plug in will work on the home page of Intergalactic?