The ISN has a setting that will allow you to determine the age of footprints to export to your report writer, and also remove older footprints so that all of your previous orders do not export.
Navigate to Settings -- Office Settings -- Working with Other Applications -- ISN Remote Manager
Remote Manager Settings:
First we recommend that you remove all footprints first, and this can be accomplished by clicking on Remove Footprints Now and then click on Save Settings.
Once that step has been completed, come back to the same Remote Manager Settings and select when you want your footprints to be removed. The options are Never up to 5 days:
As always, click on Save Settings to ensure that your changes are saved!