I'd like to decode a transaction encoded by Armory, view it in hex format, decode with the bitcoin-tx CLI tool, edit it if needed, and re-encode it so I can spend it from Armory. For example, an unsigned/offline transaction with the TXSIGCOLLECT header.

Also, is there an API I can use to program extensions or modules for personal use? I saw something while screwing around in the ArmoryQt.py file about modules that can be loaded on startup, unless that's something deprecated but not removed.