I would like to see functionality to “flag/star” transactions. The flagged transactions should be made visible in a single list (next to the traditional transaction list per account). Just like most email programs allow you to keep track of certain email messages by flagging them.
The reason for this request is to keep track of transactions that need some work. Like: money lent out to someone, a web shop transaction which must be (partially) refunded. So, the flagged transactions will create something like a “todo list”.