It would be useful to be able to append new additional keywords in Batch rather than changes to a batch edit wiping out whatever is already in individual keyword fields. For instance, if you want to add say a few additional keywords to a large batch of images already keyworded, under current functionality we have to do this image by image. A example is if you wanted to add the keywords "blue sky" to 50 images of subjects, all keyworded differently, but all taken against a prominent blue sky. Currently, a tedious job.
Ken