Using Composition Recipes

I’m trying to create a glyph which is just a component of other glyphs (i.e. a single glyph that spells out a company’s name to make the logo).

From reading the manual, it seems like I can easily do this with composition recipes; but I’m not sure where these are supposed to entered?

You put the recipe in the “Generate glyphs” dialog.

BTW this doesn’t work with atypical glyph names (i.e. astem1+abowl1+atop1=a.001 creates a blank glyph)