Multi Currency Account change per transaction

ERPNext Accounting
1

Why i cant make a several Transaction for account with multi currency not the default currency for the account ?

i need to change the currency per entry not per account

2

Can you please elaborate your query with some example?

3

Let’s say an account, Local Transport Cost, is added to the chart of accounts in company currency (INR).

When posting a Journal Entry, ERPNext then allows user to change the currency to USD. So for this case in the General Ledger, USD is the source currency and INR is the base currency.

Very powerful feature this will be.