When creating a Live Account with Bitcoin currency, your funds in your MetaTrader will show in BITs.
To have an idea of how it would look on the platform, see below:
A BIT is a common unit used to designate a sub-unit of a Bitcoin (BIT). 1,000,000 BITs are equal to 1 Bitcoin (BTC). Example: 1 BIT is valued as an estimate of 1c of 1 USD.
To create a Bitcoin MetaTrader account, you would need to choose the BTC option from your Nash Market's account.