Since yesterday's update, I realised there were two other uncommon operations that were missing from the tool. I have now also added transactions for:
Account Creation Transfers - the 'fee' for creating new accounts which is actually sent to the new account
Currency Conversions - when you convert SBD to STEEM using the wallet function. Don't do this though! Using the market instead is quicker and saves you money.
Hopefully I've got all the potentially taxable transactions now!
Payout declined as these should really have been in yesterday's update.