Re. “Is there a reason you can’t update the Workspace preset with your preferred zoom level?”
Yes. I use a global workspace to get all my windows laid out the way I need, so that zoom level is stored globally (not on a per-project basis). Unfortunately, the “one number per bar” zoom level varies dependent on project length (e.g. the zoom level that works that way for a project that’s 10 minutes long doesn’t work for a project that’s 3 minutes long, I’ll have to readjust it to get the “one number per bar” back). So, when I load a project after activating that global workspace, dependent on project length, I will have to adjust manually, hence my original request.
But thanks for the pointer to the zoom key commands, I’ll poke around in there a bit and see if I can use that to come up with a solution!