I would also need the orientation option on inputNumberSlider, but it is still not avaiable. I am using Version 4.3.1 Final
you are right. The orientation option is not implemented in the RichFaces 4.x.
Here is the feature request for this:
You can vote on that to increase a chance incorporating it to the framework.
I have also filed an issue to change that picture:
Thanks for reporting that.