Kendo Dropdown Grouping,Searching

Trying to implement grouping in Knedo Dropdown,following this link

But here how can group names be on top,instead of right. like Argentina it is displayed on top,but Austria it as at right,want other names Austria,Belgium to be displayed same as Argentina.

Please do let me know how this could be done?

Also while binding datatext field in this case it is ContactName if it is greater than suppose some specific length say 5 then it should be trimmed to 5 length and ... must be appended.  for example Patricio Simpson this should be displayed as Patri...  how could this be done? please guide me on this