Hello, I would like to add a column in an XML financial report. but I want to add it via XML. is that possible? 
If not, how can I do it?

for example, I would like to add a column on the balance sheet report to have a gross amount, depreciation, net.

Her is an example of my XML record

<record id="account_financial_report_line_01_fr_cdr_char_vent" model="account.financial.html.report.line">       

 <field name="name">TA | Ventes de marchandises  A</field>       

 <field name="code">Ventes_de_marchandises</field>      

  <field name="parent_id" ref='account_financial_report_line_01_fr_cdr_char'/>        

 <field name="domain" eval="[('account_id.code', '=like', '701%')]"/>         

<field name="formulas">balance = -sum.balance</field>       

 <field name="sequence" eval="1"/>      

  <field name="level" eval="3" />  

  </record> 

Regards.