Etext Template - Dynamic Earnings Records

Hello,

     We are building an interface for Wage payments which has dynamic number of earnings for each employee. We need to club three earnings together in a single row in the output file. For example, if an employee has 6 earnings, there will be two rows in the file and if an employee has 8 earnings, there will be three rows in the file. If we use the display condition for the record, it does not loop through the earnings. Is there a way to achieve this using etext template?

Thanks for your help!