Attaching Custom Data to the blend file, scene, objects
112506
How to register global (i.e., unique per file) properties?
14705
How can I reuse existing materials, objects, etc from an existing .blend?
140147
How do I compile a C# script at runtime and attach it as a component to a game object
19333
What is causing disabled options when adding a mesh/curve object to the scene?
99050
Tracing a monochrome image into a 3D, extruded object with a script
132684
How can I append an object from an external blender file using a relative path with Python?
64203
Add a custom curve mapping property for an add-on?
59889
How would I import/export Blender's preferences?
38548
Creating a custom permanent property in Blender 2.70 python script to access in GUI Panel
137263
How to tell if an object is linked with another blend?
98595
Dragging files into blender
96794
Whats the Blender 2.8 command for adding an object to a collection using python?
78297
Can I transfer an already made UV to another object?
3573
Import CAD with all layers into Blender
46270
Is there a way to export an object to Unity 3D while keeping any applied textures?
129155
link new object to scene with python in 2.8
121627
Considerations for using .blend files between operating systems