Is it possible to include a function that could easily add or delete states (from the beginning, middle, or end of a set of states)? 

Something with the following syntax:

delete_states 14                          #Deletes state 14
delete_states 10-20                      #Delete states 10-20
delete_states 10-20,30-40              #Delete states 10-20 and 30-40

That would be great.

Sean