There must be a table or algorithm there, just add a new table entry, and have MOVE and COPY operate on the table - this shouldn t be hard. Jim D thinks this is not an easy implementation. Let s see the semantics first. Jim W will write definition of a BIND method. Geoff will write a description of the fixup step operation.
Bindings don t give relative references capability.
Semantics will include an example where operation on binding differs from operation on references. Drop direct references - this is getting too complex. It seems stable, whereas referencing is not. Options are getting too complicated. There is more interest in references than in ordering.