Adding column in quotation item form

I want to show column " Discount on Price List " but when I tick on"in list view " , the column " AMount" disappear . It seems that there is a limit on number of column( only 4 ) in Quotation Item Form , Can we set as 5,6 column instead .

please see below link


HI Sagar ,
Thank so much ,it nearly match with our requirement but it becomes “uneditable” so can not edit on table when we type .i.e typing the discount number .

please check developer_mode is on or not and you have permission or not to change the Doctype Changes.