I'm feeling a bit dense here :-). F7 to get the Object Details was a breakthrough. I was able to select all the jobs (or Control-Click to get a subset).
I'm afraid I still don't see a way to generate the scripts. In Object Explorer, where I can only select a single job, I have the right-click, Script Object As... choice, but in the Object DEtails dialog I don't see that.
What am I missing?