Closable tabs can be achieved with the help of templates as it's demonstrated here
Reorder with drag/drag functionality is not implemented but it's logged in our public issue tracking system here
, so you can vote for it in order to raise its priority.
All the best,
the Telerik team
Do you want to have your say when we set our development plans?
Do you want to know when a feature you care about is added or when a bug fixed?
Telerik Public Issue Tracking
system and vote to affect the priority of the items.