[GNC] Charts with Multiple Currency

[risokei]

Hello,

I'm using Gnucash with Japanese Yen and USD
Some charts show the data by graph.
But the graph is wrong. It seems all data is treated as Japanese Yen in 
the graph.

For example, Networth line chart

I have 100 JPY and US asset which worth 1 USD(1USD is almost 100 JPY), 
Gnucash draw the graph as 100 for currency and 1 for foreign asset value.
I think JPY and USD asset should have same volume in the graph in this 
example.

I guess gnucash don't have the feature to draw a graph with multi currency .

Is there any workaround or fix for this?

Thanks in advance.

Risok