question

Hi, I have a below requirement in Drill down report. we have below two values under Lost Customers. Lost Customers, Number of lost customers, Rate% Here I need to implement , where I always need to show Number of lost customers and implement drill down in only Rate. I mean, Number of lost customers should show always, but If we click on plus (+)symbol which is in Load Customers, Rate should expand. here Number of lost customer and Rate are the two values under column Subgroup and Lost customer under column Group. In our design pane only Group and subgroup shows, not values. Now how to show one value of Subgroup column always and another value only when we click on + symbol. I have attache the screen shot as well. Please suggest me How to achieve this in SSRS?