When you create a new project using the "ToC only book" option, it may be necessary to adjust the level or position of some of the NCC items. To open the "NCC editor", select "Move NCC items" (F4) in the "Edit" pull down menu, or click the "Move around one or more NCC items in the NCC" button on the tool bar. When an NCC item is select in the editor, you can move it up/down and also change its level using the NCC editing buttons at the bottom left of the editor.
Select several NCC items to edit simultaneously
If you need to make a change to the actual headings, for example if a word in the heading is misspelled, go to the NCC tree view on the "Main screen" or the "Edit screen". You can change names of the headings in the same way you change folder names in Windows.