Hello Paige,
This functionality is not available out of the box, but can be achieved with a few css hacks:
<style type="text/css" >
.pickerWrapper_Default table
{
direction:rtl;
}
.radInput_Default .inputCell
{
padding: 0 5px 0 5px !important;
}
</style>
Note that this is Skin dependent and the paddings might differ on different skin and sizes of the input.
All the best,
Steve
the Telerik team