I think a helpful feature would be to customize the Stock Selling Manager in Stock Central by allowing the "Sales last x days" column to be any number of days, not just a 30 days maximum. This should also include the product numbers deducted from the Inventory Logs (or at least an option to add Inventory Log numbers). Another column category could be a Sales Forecast for x amount of days. This would be separate from the "Stock will last (Days)" column.
For example, if I want to predict the number of sales for x product for the remaining days of the year (or 138 days from today) based on the sales average of the "Sales last x day(s)" column. e.g., average sales since January 1 (or 226 days) is 20/day * 138 days = 2760. Of course, this doesn't reflect seasonal sales, which is why the x number of days should be customized.
This should also be in Manufacturing Central since BOMs are calculated for the Stock Central products; otherwise, there would be a lot of back calculating.
This will help predict the amount of inventory to keep in stock and how many to order.
I hope this was clear!