Layers > Sculpt using layers >
Lock and unlock a sculpt layer

You can lock a sculpt layer to avoid accidentally modifying the sculpting on it. When locked, the sculpting on a layer remains visible but cannot be edited.

1. In the Layers window, click the lock icon beside the layer you want to lock.

   A lock icon appears to indicate the layer is locked.

2. Click the lock icon a second time to unlock the layer.