material groupwise stock

hi all,

In my company we have created material groups as for example CV-BU001

where CV stands for CIVIL WORK

BU stands for BUILDING

001 tstands for material (say cement)

when I check stock report the report is available only for material group thet is CV-BU001. But our company management wants report at "CV" level or CV-BU level. Is that possible with SAP.