The advanced settings allow you to re-map the account codes used on the bills that are created when payroll is imported into the Accounts module.
You can create new accounts in the Accounts module.
Navigate to Settings > Advanced.
Make the required changes by selecting an appropriate account code in the drop-down list.
By default, the Employee's and Employer's pensions drop down defaults to the same Pension account code. You can create new separate account codes in the Accounts module for both Employee's and Employer's pensions, and then map them appropriately as shown below.
Click the Save button to complete.