KAppTemplate is a wizard. The first page of the wizard explains you that KAppTemplate will generate a base project. Click to start generating your project. will stop the program and quit it. will display this help handbook in KHelpCenter.
The second page lists the available templates. On the right you can see the template preview and below the template description. After you chose your template, you are invited to enter the project name in the field at the bottom.
On the third page, you are asked for the project version, the source folder and the author name and email. If you filled System Settings tab about your personal information, it will be taken from there as default.
The fourth and last page gives you some feedback about the project generation.
Then click to close KAppTemplate.