Glyph as bullet not functioning in paragraph styles

[Adam Bresnahan]

Hello. I would like to use a glyph as a bullet (the opentype digit 3 of Adobe Caslon Pro - an acorn). In the paragraph style box for my "Bulleted list" style, I am trying to add the bullet. When I click "add" and then click "ok," a standard round black dot appears in my list of bullet characters to choose from. If I try to add my preferred glyph (or any of the other opentype glyphs from the font's set, for that matter), the program tells me: "The selected bullet already appears in the Bullets and Numbering dialog box with this font and style association. Specify a different font or style, or select a different bullet." In short, adding a glyph as bullet is not functioning. Could anybody suggest a solution to this problem? Thank you. 

[Willi Adelberger]

1. Did you create a Character Style first of the font which contains this bullet? You have to do so.
2. In the paragraph style select first the created Character Style, the select the bullet of that font.
3. Use it.