All Files Editing Templates You can open a template and edit it just like any other project. If you want modify your templates, you can edit them using the Edit Template command. How to edit a template In the Library view, select the folder containing the template to edit. NOTEIf the library folder is locked, right-click on the folder and select Right to Modify. Right-click on the selection and select Edit Template. A new Harmony application opens. Edit the template. From the top menu, select File > Save. In the top menu, select File > Quit (Windows/Linux) or Harmony Essentials > Quit (macOS).