When housekeeping some of our older objects, it's easy to get rid of the code, but very difficult to tidy up the Application Modeller.
The Error report will give you a warning for each Element which isn't used, but this can be very time consuming on larger objects to find the element to delete.
If there was a way any unused/unreferenced elements could be highlighted within the Application modeller (different colour text or an icon maybe), this would make housekeeping much easier.