I'm willing to adapt an existing font to my own needs. This font is full of open-type features. But I don't need to edit, adapt or modify these features. I will only work at glyphs level. So, my guess is that TypeTool is enough for me.
Will TypeTool preserve the font's OpenType features after my edits ?
Today I own TypeTool 1.3. Will it work or do I need to upgrade to the current version ?