Tip # 130. The process for saving presets of different types, meaning shadows, styles, Brushes and so on, is functionally the same process. If you can save a style, you can save a Brush and so on. If you aren't paying attention, you'll save things that you didn't want to save included with the things that you did want to save.
I'm thinking of a kit that went up for sale and the designer had included a set of styles in her kit. But since she hadn't been paying attention, she'd saved a set of styles that included ones that were not for sale. She bought them from a different designer and hadn't meant to include them.
The trick is to select only the objects that you want to save in the Preset Manager. The lines around the different styles or Brushes or whatnot will be heavy if the item is selected. Use your Command or control click to select more than one. Shift click will work as well. Only the do you want to click on the save set button.
Don't forget to give your set a descriptive name when you save it!