Most of the dropdown lists that you see in TreeWorks can be customized; tree and maintenance descriptors can be added, modified and deleted. In this case, you want to add a descriptor "re-inventory" to the Tasks dropdown.
Knowledge Base ArticlesAssigning Maintenance Tasks.
Compacting the TreeWorks database
Customize the Species List.
Extending the TreeWorks Evaluation
Migrating Data to ArcGIS Explorer
TreeWorks - Getting Started in ArcMap.pdf
TreeWorks and ArcPad - Setup a Handheld
TreeWorks - Starting a New Project with an Existing Database
TreeWorks ArcPad Configuration
TreeWorks Check-in and Check-out
TreeWorks to Itree Conversion
Understanding tree appraisal values
Using ArcGIS Field Calculator for Mass Updates
Using the Camera Option in ArcPad 10
Utilizing the Notes Field