Track Net Worth by Adding Liabilities to Margin Account

Please add support for liabilities in margin accounts. The state of debt or borrowed money should be properly refected. It is important to track the porfolio net worth and not only its total asset (as it is currently).

Currently, borrowed money increases the asset and the porfolio value, which is perceived as good high portofolio performance. This is misleading.

Lending income seems to be properly supported, but not debt or interest.