More than 9 lead columns in COPA planning layout

Hi Experts,

We have created the COPA planning layout with 7 lead columns (Profit Center,Plant,Customer,End customer (WWUSX),Sales group (VKGRP),Customer material number (NEW),Unit Sales Quantity) we want add another 5 characteristics (Account manager and Product Hierarchy 1 to 4) in the existing planning layout.

We found there is restriction in SAP we can add up to 9 lead columns only but my client want to add more 9 column in the layout. Please provide the possible solution on this.

Regards,

Venkataswamy