RMAN NEWNAME FEATURE

We have recently upgrade one of our systems to a new server which has a different file structure in both location and size.

 Is there a way to split a single datafile over many datafiles when using RMAN clone features.

For Example

Source file INDEX_01.dbf size 20GB

Destination file(s) INDEX_01.dbf size 10GB and INDEX_02.dbf size 10GB

RUN

{

set newname for datafile 1 to 'e:\Oracle\oradata\INDEX_01.DBF','e:\Oracle\oradata\INDEX_02.DBF';

}

Many Thanks for all your advice.