When I open Fontforge to create a new font, it only lists a limited set of characters / glyphs. In the font I create, I need some glyphs that are missing from that default set, e.g. "single right-pointing angle quotation mark" (U+203A) and "single left-pointing angle quotation mark" (U+2039).
How can I add "slots" for these glyphs, or rather:
What is the proper way to add glyphs that are defined in the Unicode table?
Ah, well, just go to Encoding > Add encoding slot, then there will be a dialog to set how many slot(s) you want to add.