Possible to select multiple items in a Dock folder?

When you click on a folder in the Dock, say the Downloads folder, clicking an item will immediately perform its default action (a .jpg, for example, will open in Preview). Duh!

Is it possible to select multiple items in that Dock folder before the default action is performed (like how you can Command+Click multiple items in the Finder)? Imagine selecting three .jpg files and opening them all in Preview in one fell swoop! Or even highlighting three items to drag them all to a different location at the same time!

I've tried various keyboard commands but couldn't get anything to work. The closest thing I could make happen is with Option+Click which will perform the default action in the background and keep the Dock window open... not quite what I was looking for.