fontforge/fontforge — pull request #1925 by monkeyiq (2014-11-13 12:09:29+00:00)
Title: Metricsview: allow chars to be created on demand

You can now type a char in and fontforge will create that char in the
font if it doesn't already exist. Handy for setting the glyph width
regardless of if there is already a glyph in the font or not.