Print-O-Matic version 1.3 offers users the ability to target the page or post container using a new placeholder code:
Here is how it works: Let’s say the article you want to target for printing is contained in a div with an ID of post-482. You could use the short code
[print-me target="#post-482"], but maybe you don’t know how to find the post ID, or maybe you are just plain lazy. Well good news! Now, all you need to do is use the fancy ID placeholder:
[print-me target="#post-%ID%"] and like magic, the post or page ID is automatically inserted.
Technology, isn’t it just grand?