This is not possible in Lightroom CC (currently). If you need this (as most power users do) you should stick with Lightroom Classic, which is the update to Lightroom 2015/CC. Lightroom CC is a completely new app built from the ground up that misses a lot of the features in the old Lightroom but that stores all your originals in the cloud instead of on your local hard disk. Classic stores all your originals locally.
I appreciate your response and have seen it around. I know the difference between the two and I don't expect the full LR app. This app offers a solution to one problem that I have (easy cloud storage) while neglecting some of the simpler aspects of LR. Batch editing is, I think, one of the cornerstones of LR. I mean, they have a paste edits function. How useful is that one-at-a-time?
I suppose I'm less looking for answers and more flagging what I think is a fairly glaring flaw in the app. It certainly doesn't live up to, "The complete photo service for editing, organizing, storing, and sharing -- from anywhere."
I agree. This is a show stopper for me and why I still have my main catalog in Classic and why I only dabble in CC by syncing from Classic to edit a few images on my iPad or travel laptop. A good overview of the missing features is here: https://www.lightroomqueen.com/lightroom-cc-vs-classic-features/