Engineers made the drawings I'm working with, so please forgive weird queries.

When I insert a BOM, it populates with Item and Quantity.  Some of the drawings I'm working with have a BOM and also have balloons with the quantity option ticked and an override value.  I read this as double dimensioning as the quantity is given in the BOM (e.g. 3), then a quantity is assigned to the balloon (e.g. 3).  This reads as three of whatever item, which has three items in it, or nine items all together.  I understand what the engineers want to convey, but suspect they are doing it incorrectly.

Some items have a BOM quantity of, say, 16, so having balloons of "8X item#" in one place, and "8X item#" in another place makes more sense, but I still think it's wrong.

Am I way off base?