Multiple actons

I have (God help me) a Mac, and on my Mac I can commit multiple actions with the Command key. E.g. I can click on 5 files holding down the command key after clicking on the first one, and then I can move all five at once into a folder. I have been assured that I can do the same thing in my inventory, where I happen to have 50 or so pose balls (Don't ask.) Well, I tried it and it doesn't work. The Control key doesn't do it either. Is there any way to achieve the effect, such as deleting all 50 pose balls at once?

Please don't advise me to get rid of my Mac. I just had a friend visit from Menlo Park, and I told him that as an amateur pianist I have discovered that touching the keys on a piano can be an erotic experience. He replied at once that he had the same experience touching the keyboard on his Mac. I too have had that experience, but I would never have gone public with it unless someone else went public first.

Do any folks with a Dell computer have a similar experience?

This may not exactly answer your question, but I am sending you in-world a keyboard cheat sheet that I nicked from Kirstens Viewer 16's log-in screen. It has a zillion KB shortcuts in both PC and Mac equivalents.

Try using the shift key, that's what does the trick on a windows pc.