The admin user on your account is able to edit 1CAH by following the below steps:

1. Go to settings > profile > your team page;
2. Click 'edit' in the Set application values & approval levels section;
3. You can edit in here.

All 1CAH changes will be updated automatically, with previous versions managed via version control (history). If you have any applications that are in progress these will change to the new 1CAH rules.