The import transactions via CSV functionality is very useful, but needs to add support for split transactions.
In my use case, I am downloading transactions from my Bank, but I receive a single monthly payment that needs to be split out amongst multiple categories that change frequently month-to-month. As a result, the existing memorization functionality doesn't work and I resort to manually entering the data which I receive via a separate monthly statement which has all of the detail.
It would greatly improve the experience if I could use the monthly statement to generate the split transactions directly in Quicken which could then be merged with the single transaction I get from my bank.
There are 3rd party tools that can help with this, but rely on the older QIF format which comes with its own host of issues.
Please consider this idea!