Why "Apex Data Loader" and not "Data Loader"?
Maybe this Q/A needs to be reviewed since I see the article
and also checking the options available at package settings level.
The "Prorate Calculation" setting does not exist and the "Subscription Prorate Precision" setting has the "Monthly + Daily" option (and not ...
If create twin fields means to have same API Names fields between Quote and Process Input, then I tested and it is not working.
Instead, I tested the A option and it works as required.