How to combine balances from different fields of the counterparty price list
Create three different number fields, such as Warehouse1, Warehouse2, and Warehouse3.
In the column address settings, specify from which fields of the price list to fill them with values.
For the "Availability status" or "Quantity" field, enter the formula for adding these fields. {Price list: Warehouse1} + {Price list: Warehouse2}+ {Price list: Warehouse3}