Edit project info
TimeCache can be set to record optional information about projects/matters in addition to a name and job number. You can include a project description, a project estimate, a PO number, a user-defined field, and a "Launcher" for every project you track. You can also use a user-defined job number. After enabling these details in TimeCache Preferences, you can change any of those items at any time directly from a Job Sheet. To do so, choose Project>Edit project info.

This has the same effect as going to the List Manager, choosing Project, and finding the project listing you want to edit there.