Can we access cache memory through custom opcodes ?

 Hi,      I have a task where I need to fetch a set of bills based on some selection criteria. The resultant set is being read in some other part of the application with is called  through pin_notify functionality. Hence I thought if I can place this result in cache memory , then I can read it in my later part of the process. Can this be done in BRM through custom opcodes and how? Is this way of storing and reading data advisable when executing the process for large number of accounts ?

Kindly advise.

Thanks & Regards,
Pavan Kumar B