That feature is inspired by a Vim plugin called EasyMotion.
As far as I know, there isn't a single vi[m] emulator out there that supports Vim plugins. Some emulators, like Vrapper for Eclipse provide their own implementation of famous plugins but that's how far you can go.
But if you want a definitive answer, read the ViEmu documentation.
Using a vi[m] emulator is a very poor way to learn Vim. Use Vim itself.
Installing plugins is also a very poor way to learn Vim. Learn the basics first.