Please take a look at this video.
https://www.youtube.com/watch?v=tFyqOigqnUw dynamic bookmarks are a easy if you want to go that route.
what you also can do is create a flag (1 or 0) as a colomn in the loadscript that only have 1 at the last 5 day's and 0 for the rest. then you can add a bookmark with a filter on 1. when the app reloads the 1 and 0's get recalculated an the bookmarks get the 1's.
hope this helps
