Default Mod for Goodle now shortcut

Hi,

I don't know if you have see it, but when you slide your finger on home button, you have a google now shortcut.
I want to personnalise this shortcut, for add Hangout, Chrome etc...
I have see mod or apps which disable this shortcut, or make a box with shortcut when you open it, but me, I want all shortcut directly on circle like on the lockscreen.

is it possible?
i'am root, and gravity Box don't give this possibility.

thank you guys.

ps : sorry for my english, i'm french