How can I enable delta option for the datasources

Hi BW Gurus,

1)I feel immense pleasure in getting my issues solved. Now I have one issue.

How can we apply delta option for datasoruce 0HR_PT_1. I tried using infopackage with Delta but I couldn't get modified records. so plz suggest me.

2)How can we work with Generic Delta. How can set up Calday/Timestamp/NumericPointer in detail and on which basis can we set up any one of the above.

I will be glad on answering my issues.