The add to PSD feature is great. It would be really awesome if you could add the next render/s to an existing PSD as well.
Due to some lacking issues with how keyshot treats shadows and sampling of shadows, I prefer rendering out the product with no shadow, then creating a separate shadow pass for the ground shadow all by itself. But Then I have to open up both files and merge them. And yes, I know that's not hard, but it's more time consuming that Not doing it. ;)
It would just be a cool feature if you could render multiple images directly into one psd.
Also, since that's not what the feature does, if you have no passes selected, shouldn't add to psd be greyed out?
:) Agreed. A shadow pass, and basic render layers would be a nice add.