Load Beneficiaries using enrollment uploads

Summary

Can we load beneficaries,percentages and coverage amount using enrollment upload process from Benefits Evaluation and Reporting

Content

Has anybody tried the Enrollment uploads process from Evaluation and reporting in Benefits administration? I would like to understand more on how to use the BenefitsEnrollmentexcelupload sheet and enter parameters there. For example, what do we enter in the Batch Name,Batch Status and Key.

Can we do this task on an existing life event by reopening it? Because we have retirees enrolled in Retiree life plan-- we just want to load the beneficiaries,their % of coverage and coverage amount. 

Any help is greatly appreciated.