vi-zoo mouse model downloading

I use the sim4life light. I download the vi-zoo mouse model on the sim4life website. But when I imported the downloaded model into sim4life, I found that all the content in the model was locked.It appears the item is locked. I don't know the reason.!

The model is posable, and the locks prevent the user from modifying the individual surfaces which may break the posable model.
If you need to edit (e.g. cut) individual surfaces, you can select the folder containing the model or the bone mesh system and choose "Clone As Static" from the context menu. This will create a non-posable copy (without locks).