I would love the ability to import tab delimited data via file
Hanzi:
Pinyin: (if alternative to default desired)
English Definition: (if alternative to default desired).
Mnemonics: Your own personal mnemonics.
Notes: Notes, if you have any, could then be appended to the current Mnemonic area during display. Notes could include things like references to related characters, or a question to a teachers.
I guess currently, mnemonics can be treated and mnemonics/notes. Irrespective, having the ability to import fields would be very useful.