Warehouse Balance Sheets improvements

[Silver1974]

When there are loads of production sites it would help to have the materials icons also at the bottom of the balance sheet. Alternatively we could have an option to expand/hide the production sites report per material e.g. "+ Estates 5250" and when click on the + to report the production of each individual estate as we do now.

I would list the sites not alphabetically as it is done now, but either based on the order of the materials icons, or based on the production sequence, e.g. have mills & factories last.