I think you're talking about AutoGroups, right? Meaning, the tree nodes representing children of the same type, for a parent. Groups, in general, provide Average, minimum, maximum for metrics of the group members. Summation (total) of metric values, is not, I think, desired in general and therefore not presented. You could create an enhancement request for this (in Bugzilla) but Im not sure it will be accepted because it will generate more back-end processing, more presentation-lvel work, etc.
Instead, you could calculate this data on your own via a custom client or script, using the remote APIs.
I am sorry jay. that time our friends are not replied me. so that i asked multiple time. dont mistake me. That is not doubt, That is my need(I am urgent). So i posted mutliple different view of question. Thank you. Now i understand that buzzword is "AutoGroups".
can you point out, where to, how to done those processes(minimum, maximum for metrics of the group members).