Well, I tried different launchers and here is my what I found.
Not all launchers are made for non touch screen device like Fire TV.
RUI Launcher for TV
- Made for TV, but it does not show-up very well in Fire TV. Same thing with most of the Launchers like Nova, Go, ADW.
TV Box Launcher
- Could be the best launcher for Fire Tv, but there is no way to launch it. It can be only launch by making it default launcher and pressing the home button. Its not possible for Fire TV at this moment.
- This is what I am using right now. It does not allow to add more than 2 shortcut on home screen without paying for full version through in-app purchase, which is again not possible in Fire TV. But it will show all apps listing by pressing right button on remote.
I will continue to try more to see if I can find anything better.