To change the structure of your project you need to be able to move topics around in the Table of Contents (TOC). You can do this by dragging topics with the mouse or by cutting and pasting. You can also copy, cut and paste between different projects in the Project Explorer.
Note that all these operations must be performed in the Table of Contents section of the Project Explorer. Different rules apply for managing your topic files directly in the Topic Files section – see Managing topic files in the Explorer for details.
There is no UNDO in the Table of Contents (TOC) – all changes that you make here are permanent! In addition to deleting TOC entries this also applies to cutting, pasting and moving TOC entries. Use Explore > Disable Drag & Drop in the Project tab to prevent accidental changes to the TOC.
Copying, cutting and pasting (text and content)