It would be great to merge show files without the incoming file overriding all of the labels for the things that I'm merging in, especially in patch.
I can't tell you how often I'll prepare a show file, then arrive on site to someone telling me they've already patched the show into a blank file. I'm pretty meticulous about labels and fixture profiles, so in those moments I have to choose between relabeling or repatching everything.
It would save so much time to be able to merge in just addresses, or just color data, or whatever, and have the labels already in the file stay put.
