Glyph Palettes
http://www.itcfonts.com/Ulc/4012/Glyph Palettes.htm

Strizver, Ilene
Upper and lowercase Magazine
2007

Abstract:

Sometimes a simple idea can make a big difference in your work. One recent improvement to major design applications is the addition of glyph palettes. This handy feature will help you find and use the exact character you’re looking for – even if your font has thousands to choose from!