I added an option to duplicate selected transaction(s) *and* reverse it (them). Similar functionality exists in GnuCash.
The use case is that for some of the transactions you want to easily add a reversing transaction and assign it to an Income/Expense category. With that in mind, the reversed transaction has the same date as the original. Checked-in to my branch: https://github.com/wrobelda/kmymoney/tree/add_reversing_transaction P.S. Are you planning on moving to GitLab and using Pull Requests there to maintain contributions like these? I am developing on mac and using Phabricator to submit patches is quite a pain.
