Planning Book

HI Experts,

Wea re having 2 planning books X and y.

For X planning book,I am having key figure called propotional factors in data view.

The other planning book Y , i don't have keyfigure propotional factors . so i want to add propotional factors in Y planning book.How can i do this??

Please let me know, how to do this.

Thanks & Regards,

Manasa