Quote: "DO you have a video of this feature to show us?"
If you mean vertex snapping, here you go.
https://www.youtube.com/watch?v=9lRux_rvfLU
Start at about the 1 minute mark in the video. The first example is not too interesting, but keep watching and you'll see how useful it is.
System Specs: OS - Windows 7 Home Premium 64-bit SP1, CPU - AMD Phenom II X4 945, 3.0Ghz, RAM - 8Gb DDR3, GFX Card - 2048MB NVIDIA GeForce GT 640, FPSC-R Version - Beta 1.0071