GridPanel custom grouping summary logic

[icetronics]

Hi!

In our grid, we have rows with different currencies. When we are grouping the grid by other properties, the amounts are getting summed regardless of their currency. I would like to extend the summary row and show the totals by currency:
12345 USD
3666 EUR
5000 GBP

Is there a way to achieve something like this?

Thanks much in advance!

[icetronics]

Any ideas please? Thank you!