You can create multiple accounts on CoinTracking by linking several together.
You can link them together in the Settings under 'Join multiple accounts' at the very bottom: CoinTracking · Settings
When linked, you can switch between the accounts in the top right corner.
In 'Total' you find accumulated statistics for linked accounts.
You can delete a connection by pressing the Un-Join this Account button in the Settings.
All your linked accounts will automatically have the same membership level as your main account.