It is an additional tool to use, but it has a drawback The path in the readScript has to be precise. Those with the confidence to text edit a path to match their setup, are likely to also be able to use MM4 to just copy in new null morph channel hosts and use a normal injection pose. This going to catch those who rearrange their libraries but do not do text editing. It is a way of having a maintance-free method for some users, but it not going to be a universal solution. The second is having to save the file back to the library. If you have hidden morph channels, they show up. But this is true for any inject method using Poser. So this does not present anything in the way of a new problem there.