Accounting reports such as profit and loss and balance sheet are, by default, in tree view where totals of an account is shown before the children;

Income                         $ 900,000 <-- (1)
    ...                        $ ...
Total revenue                  $ 900,000 <-- (1) to appear here instead
Cost of Goods Sold             $ ...
    <children>                 $ ...
    ....                       $ ...
Gross Profit                   $ 573,800

Expense                        $ 500,200 <-- (2)
    Accounting and legal fees  $  11,700
    Advertising                $  15,000
    Depreciation               $  38,000
    Electricity                $   2,700
    ...
Total Expenses                 $ 500,200 <-- (2) to appear here instead

How can I achieve this without having to rewrite a whole set of codes? I tried to inherit account.report_financial into a custom module and have it call my own qweb report but have no success - unable to install the module due to "KeyError: 'account.report_financial'".

I tried looking for available modules but had no luck either.

Could anyone point me to the right direction? Thank you.