Enabling 2FA for Live Connect sessions is configured using the Manage Agent Groups page. After adding an AuthAnvil agent group, click the Show Advanced button to Enable Authentication for KLC - If checked, a user must use 2FA to use Live Connect on a machine.
Once enabled, you can use the View KLC Audit Logs page to view Live Connect 2FA logon activity.
For 9.3 the Remote Control Authentication page only applies if you are using Live Connect (Classic). Live Connect (Classic) can be enabled by setting the Use new Live Connect when clicking the Live Connect button in Quickview option to No in System > Default Settings.