Oanda historical data "invalid instrument"

Trying to download additional M1 data from Oanda with the download script. The login works and I can use it to update the historical data for the common indices US30, GER30, NAS100, SPX500, UK100 that are already included on the zorro download page, but when I try any other index, zorro prints "!invalid instrument"

I am entering the symbols from Oanda's page from here https://www1.oanda.com/lang/de/forex-trading/markets/live

For instance JP225 for Nikkei 225, US2000 for the Russell 2000 or CN50 for the chinese index, which I think are the correct symbols?

Nevermind, I figured out Oanda wants a counter currency for indices as well, e.g. CN50/USD