I have a layer showing the position of some vacant lands in Naples in form of polygons. I need now to assign to each parcel a random name (even just a,b,c,aa,ba,ca,etc.). I have almost 30000 objects here so I really would like to know if there is an operation that would save me from naming the parcel.. one by one manually! I'm doing this because I want to summarize my results, I tried to do that with the default ObjectID but for some reasons the button Summarize can't be executed on that. Please, any suggestion at all?