Hey,
you need to do two things to show the last modification timestamp anywhere in your post or page:
1. define a string and use one of the provided shortcuts like “Last modification: *last_modified_timestamp*” under Settings -> WP Last Modified Settings
2. open a post/page and add the last_modified_date shortcode anywhere like: [last_modified_date format=”Y-m-d H:i:s”]. You can use the “format” attribute to format the timestamp, in your case it should be: [last_modified_date format=”d-m-Y”]
Feel free to ask if this not helps..
Thank you, it works perfectly!