How to modify the columns name of BOM table or increase new columns?

I'm using DraftSight 2021 Enterprise right now.

I created a BOM table by selecting Mechanical = > BOM => Create, but the default columns are ITEM, PART NO, DESCRIPTION and QTY. I like to modify them to ITEM, PARTS NAME, MATERIAL, QTY and REMARK. 

I searched official documents. but it only mention how to edit the content of BOM table.

Please advise, thanks in advance.