I feel like I’m taking crazy pills. I’m trying to use AppleScripts, and I have them added to the correct folder. If I use Help > Open Scripts Folder I can see all my scripts. But I can’t drag them to the toolbar, with or without Customize Toolbar activated.
If they’re in the correct folder (check using Help > Open Scripts Folder), the scripts should appear in the toolbar customization sheet itself. That’s where you drag to the toolbar from.