I go back to work after a couple weeks vacation Tuesday. We got the latest DIADS while I was off. Any advice on how to best use them? I know they have a shift key thats supposed to be a bit of a pain. Is it hard to find all the less used functions like multiple deliveries to an apt. office, where to put in over 70s, call tags and the like? I haven't really seen one yet. Me thinks it's going to be a long day fumbleing around. But I'm sure they will give me a 3 minute PCM training course!