Hi, Section Access: Used for Security purposes of applications. It can be used for providing access of an application, with permissions like, sheet level, document level, object level etc., to the business users. The main areas are: 1. Field Level 2. Data level 3. Sheet level 4. Object level An important aspect to be kept in mind while working on section access is to backup the application before section access is applied. (If incase you forget the password, it acts as a fail safe) All the fields should be in Upper Case only. In Script Editor make sure this tab is the first, else it doesnt work. Max of 3 failed attempts are possible. For more doubts you can go through the community.