Chapter 1 What’s New for FortiOS 5.2.1 : New features in FortiOS 5.2 Patch 1 : Improve interface list and switch mode
  
Improve interface list and switch mode
This features introduces grouping interfaces by interface type and adds switch to toggle between VLAN Switch Mode and regular Hardware Switch Mode.
GUI changes
A Group By Type toggle switch has been added in the interfaces page under System > Network > Interfaces.
A VLAN Switch Mode toggle switch has been added in the interfaces page under System > Network > Interfaces. This VLAN Switch Mode toggle switch shows a confirmation dialog when clicked before toggling the system setting.
A mini faceplate for Hardware Switch Mode and VLAN Switch Mode has been added in the member column under System > Network > Interfaces.