We are using the IFS Demand Plan Client v6.0.3.

Our planning team forecasts demand by fiscal week, but sometimes they would like to review the data rolled up to the fiscal month. As is common, our fiscal months do not line up with calendar months, but are groups of our fiscal weeks - in our case in a 4-4-5 weekly grouping.
We have the period version on our server set to Weekly, and we have been able to define the correct fiscal weeks for planning. But, when the timeline is changed in the DP client to display Monthly, the system appears to divide the weekly numbers by days, determine how many days are in the calendar month, and then sum those days to give a calendar "monthly" total, instead of grouping the fiscal weeks. We've been told by our technical team that we can change the period version on the server to Monthly to define the months correctly, but we would have to trash all the current flows, lose all history, and then it’s likely that the weeks will not be correct.

This seems like it would be a very common ask, and we are wondering if we are missing a simple setting. We want to continue to plan weekly, but can you help us determine how to roll the weekly data up into fiscal months in the Demand Planning tool?