1. Go to More > Accounts > Manage accounts.

2. Choose the RoboMarkets tab and tap Add account.

3. Choose the account type (CFD or Invest), currency, and position accounting model. By default, each deal opens a separate position (hedging accounting model). Turn toggle on to merge them into one (netting accounting model). Note that you can choose the accounting model only for CFD accounts. For Invest accounts, only the netting accounting model is available.

4. Tap Confirm.

5. Make a deposit.

Useful link:

What is the difference between the netting and hedging position accounting models?