Align 2 Custom adds two viewport alignment features to Blender, extending the built-in operators that align the 3D View to the global orientation, a local orientation, or the camera. With this add-on, you can align the 3D View to the 3D cursor orientation or to a custom transform orientation.
Alignment to the 3D cursor uses keyboard shortcuts: ALT + NUMPAD 8, 5, and 6 for the top, front, and right views, with CTRL added for the bottom, back, and left views. The same pattern applies to custom transform orientations through ALT + NUMPAD 7, 1, and 3. Both sets of commands are also available under View -> Align View in the 3D View menu. The commands tied to custom orientations have no effect unless a custom transform orientation is active.
The add-on preferences include an option to disable the smooth transition during alignment, useful if you prefer hard transitions or run into odd behavior or performance issues. It requires no special permissions and is compatible with Blender 4.2 LTS and newer.