[Plugin: WP Favorite Posts] Make it more automatic

First of all, I love this plugin features.

But I find it a bit paranoid to modify the .php file to display this or to add this every time writing the posts.

Can this be a bit automatic by giving the ability to add ‘Favorite’ below or in a floating widget beside the post?

http://ww.wp.xz.cn/extend/plugins/wp-favorite-posts/