In order to use the wizard to change an edit layer/table, your project configuration has to contain at least one configured edit layer/table.
Follow the steps in Create Edit Layer/Table to see how to click through the wizard.

Starting the wizard "Change edit layer"
Note: See chapter Edit Layers for details about the configuration in WebOffice author.
Note: See chapters Editing Fields and List of Available Edit Actions for details about edit layers in WebOffice author.