Playback of Temple Blocks (5 unique notes)

I am trying to input a percussion score in which I need 5 unique temple block notes. Looking at the available instruments I see 5 unique temple blocks(High,Med Hi, Med, Med Low and low) but when I put them into my score there is only 2 unique notes, I have tried making a new percussion map and other things. Is there an easy way to acheive this?