What is the difference between locking and unlocking models in the object list?

Locked and unlocked are the two most commonly used states in the list. For models, they cannot be selected in the scene after locking, cannot be moved, rotated, scaled, etc., and can only be saved to the local library, exported, or updated and replaced after being selected in the list.

Locked models can be edited by selecting the material with the mouse instead of using the "Select Material Tool".

After unlocking the model, the model can be adjusted in the scene. If you need to select the material of the model, you can use the "Select Material Tool".