Help!!!!! i have a RX-V361 yamaha receiver with 5 surround sound speakers and a subwoofer...when

Question

i have a RX-V361 yamaha receiver with 5 surround sound speakers and a subwoofer...when i finish the "basic" set up of which i enter "5" speakers it always shows "2" also i have 2 lg bookshelf (pioner) speakers that i would like to hook up for music only...using the A/B switch...can this be done??? thank you for your time and help...Linda