This is the default behaviour.
For temporary super user accounts used in support I recommend against changing this configuration. Instead go to Components, Admin Tools, Temporary Super Users and create a temporary super user account (with a set expiration date and time).
If you really want to create Super Users manually go to Components, Admin Tools, Web Application Firewall, Configure WAF, Hardening Options and set “Disable editing backend users' properties” to No. Remember that this will allow people with temporary Super User access to create additional backend users, including Super Users and Administrators, without your knowledge.
Nicholas K. Dionysopoulos
Lead Developer and Director
🇬🇷Greek: native 🇬🇧English: excellent 🇫🇷French: basic • 🕐 My time zone is Europe / Athens
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