Better Add Menu modifies the Add Node menu in Blender's Node Editor by flattening nested submenus into single menus with column-based categories. It extracts specific categories like Matrix, Rotation, and Deprecated from the Utilities menu for quicker access and adds separators to group similar nodes while maintaining alphabetical sorting.

The addon introduces a dedicated Assets menu for nodegroup asset catalogs, which can be accessed via a user-configurable hotkey to reduce vertical list length. Preferences allow users to toggle the visibility of the Deprecated menu, header icons, and the Assets menu. It affects the Shader Editor, Geometry Nodes, and Compositor interfaces.