Chapters
Chapters for single-player games can be created with 
 XBLAH's Modding Tool through an UI. The modder can easily create new chapters, select the chapter images, chapter background images, the first map of the chapter, the background map, and the tool will do the dirty work of creating the required vtfs, vmts and scripts. It gives the option to automatically blur the background images, so the modder can just take a screenshot of the background map and the tool will apply the usual blur. This replaces the need of saving VTFs, creating chapter images with weird proportions, and so on.
Accessing the feature
This can be accessed within 
 XBLAH's Modding Tool through Top Menu > Mod > Chapters.
Managing Chapters
Adding a Chapter
You can insert a new chapter by clicking 
 button. 
Modifying a Chapter
Select the chapter to be modified.
- ID
 - The alphanumeric identification of the chapter. This will order the chapters in the new game menu.
 
- Title
 - The chapter title, to be displayed in the new game menu.
 
- Chapter image
 - Right-click the picture box next to the Chapter Image label and select a screenshot to show up in the New Menu window.
 
- Background image
 - Right-click the picture box next to the Chapter Background label and select a screenshot to show up as the menu background (or as the loading screen if a background map is set).
 - After selecting the screenshot, the developer has the option to automatically blur the background image. Useful when using a Background Map.
 
- Map
 - Select the map that will load when the user selects that chapter by clicking the 
 button. - The map can be removed by clicking the 
 button. 
- Background map <optional>
 - Select a background map to show up in the game menu by clicking the 
 button. - The map can be removed by clicking the 
 button. 
Deleting a Chapter
You can delete a chapter by selecting the chapter and clicking the 
 button. 
Supported Games
 Half-Life: Source
 Half-Life 2
 Half-Life 2: Episode One
 Half-Life 2: Episode Two
 Portal
 Source 2013 Singleplayer
 Mapbase