Hi Maria,
So in this case, I am not sure how you would trigger the CAB to be in play only when there is a code lock-down happening, but not otherwise. I dont think there is a way for the system to be able to determine when or when not to use CAB based on timing. This would most likely be an enhancement which you can raise an idea for right here on the community. Then folks can vote for it and product management will review it for consideration in future releases.
Thanks,
Jon I.