Enhance crmd_order_index table

Hello Gurus,

I have one external search field in the search area in UI. This particular field is not in crmd_order_index. Is it possible to enhance the crmd_order_index table. If yes, what all things should be taken into consideration. I have no free fields in crmd_order_index to map this field. That is why I am planning to enhance this table.

Thanks & Regards,

Renjith