Go to Items and select an item
Click on the BOM tab
Choose a view: Default, With Manufacturers or a custom view, and optionally, check Flatten
Check Multiple Mfr Parts to filter down to only items with multiple manufacturer parts on AML.
Type filter criteria in column(s)
As of 2.15, use "NOT" to exclude data. For example, "NOT Electromechanical Assy" to show all the items that are not in that category.
To clear filters, click Clear All
Click Filters to view BOM without filter columns