Sometimes, when you're out and about, it can be hard to find the Wi-Fi connection you're looking for in the sea of networks around you, so any feature that makes the process easier is a welcome one.

The filter menu is enabled via a toggle in the connectivity labs menu, which can be found in Intelligent Wi-Fi (via SamMobile). Connectivity labs won't show immediately; you need to enable it by tapping the three dots at the top right of the Wi-Fi menu and opening Intelligent Wi-Fi. At the bottom, rapidly tap the Intelligent Wi-Fi version number until the connectivity labs menu appears -- just like how you'd enable Android Developer Options.