Use Win+<digit> hotkey to activate appropriate launcher

Hi!

This is not a bug but a feture request.
I want propose usage of key combos with Win button + digit key to activate appropriate launchers in the task bar. For example Win+1 starts or switches to first application on the bar, Win+2 - second and so on.
Why it is good? If anybody works simultaneosly with several application and I wants to switch to one of them he/she may use mouse or cycle through Alt+Tab. But all requires some user attension - to move mouse from the keyboard to the mouse, point mouse and move back/ If you go with alt+tab you have to see which window will be activated now or count Tab presses and so on. The proposed Idea gives to users one key combo which always switches to specific application. It's very easy to remember it and very easy to use.

Why Win key?
1. It rarely used on Linux systems.
2. It's easy to press quickly Win + 1 ... 5 with one hand. You don't need to remember there's your window.
3. Easy to remember. ALt + digit often used for switching to specific tabs on the window. Win + digit will switch to specific window.
4. It will help Windows users to adopt in Linux and AWN.

Thank you!