@Zeenat No, it's not possible to. Consolidated invoicing is one of the most upvoted enhancement requests on SuiteIdeas. NetSuite briefly offered their Consolidated Invoicing SuiteSolution bundle for free but I believe they have pulled it now. There are third party options such as eMerge (free) and Zone and Co. you can look it (I haven't used either myself). The other option (which is what we do) is just produce a consolidate report formatted as an invoice using either Advanced PDF template on a saved search, or third party tool and ODBC.

Great! Thanks!!!

For what it's worth NetSuite professionals services might be willing to do it as an expensive customization.