I see from different sites that some have been able to create a drop down box attached to a menu item on the left panel. How is this done?

I wonder if this is the same as my attempt to split my photo gallery into additional menu choices. I have added a new photo gallery navigation link in the hopes this would be accomplished, but not only didn't it do that, but I can't get the link to show up anywhere, not even under the regular photo gallery. What have I done wrong. Basically, I want a master menu item that when you hover over or click on, an arrow drops down another list with additional choices from there.

Thanks for the help.

I couldn't find an official Help on this but maybe I can explain. It's pretty easy and simple.

1. Go to Edit Site Pages - and there you see all your links (as you know).
2. Now move the mouse to a link that's below another link.
3. Hover over the double arrow thing on the left on the link till the cursor changes to the same double arrow shape. (has a better name, but I'm name challenged at the moment)
4. Press Left Mouse Button. You'll see a color change for the link (and a 'box'). Jiggle it a bit if you don't see this change immediately. Keep button pressed and drag to the right. You'll see the whole 'box' move with the cursor.
4. Drag it till you are a bit past the end of the same symbol of the link above the one you are moving.
5. Release Mouse button.

You are Done!

Now that link you dragged to the right is a drop down (or flyout) menu. Just drag it back to get it where it was before.

You can also drag links to a different order by moving them up or down. Plus you can do this for consecutive drill down levels - not too common, but sometimes nice.

To create a "Master" link, just create a new link and don't edit a page for it. This can serve as the Main Heading sort of thing and then you drag your submenus below that.

Changes are immediate. There is no Save.

If you play around I hope it becomes obvious. It's "intuitive" once you realize that you have to click and drag

Thank you, it all worked beautifully, and more importantly, easily!

I was able to do exactly what I wanted in no time at all.