cp_install.sh command not found

I started and connected an AMI EC2 instance following this steps: https://arm-software.github.io/VHT/main/infrastructure/html/run_ami_local.html
Then, I tried following this command: cp_install.sh packlist
but got an error saying "cp_install.sh: command not found".

If I try cp_list.sh or cbuild.sh, those are already in by system. Do I have to somehow install cp_install.sh to the system? Is it not already in the instance?
I am new to this CMSIS-Build ecosystem and not sure what is the right way to get hold of the cp_install.sh.
If there is any additional steps that I omitted, please let me know.

Thank you,
Best regards,