Bommer will read properties and structure for parts with cut list items, such as weldments and sheet metal parts, and display them in your bill of materials for viewing and editing.  How this data is displayed will depend on the type of part that Bommer is reading: single cut list item parts, such as a simple sheet metal part or a single item weldment, are interpreted and displayed differently than multi-item parts like weldment assemblies or sheet metal parts with hardware.  

Single cut list item parts

Parts with single cut list items are represented as a single line item in the bill of materials, where the cut list item properties are merged into the line item for the part.  This means that you can represent part properties, such as name, part number, and other built-in data alongside cut list item properties like quantity, length, sheet metal thickness, etc in the same row in your bill of materials.

The quantity of a part with a single cut list item will be the count of bodies within the cut list item folder, and physical properties will be computed from one of the bodies in the folder.  This is designed to mimic how a part with multiple instances in an assembly would behave, and gives an accurate representation of the properties of a single physical object.

Custom properties in your BOM are editable for these parts, just like with regular parts: properties will be written to the part by default and written to the cut list item if the property already exists in the cut list item's custom properties.  The Description property is special in that it is written to both the part and the cut list item in all cases.

Multi-item parts

Parts with multiple cut list items, such as weldment assemblies or sheet metal parts with hardware included as bodies, are interpreted by Bommer as "assemblies" with the part as the top level.  When reading these parts, Bommer does not merge any rows.  Instead, each row represents either the part properties (at the top level) or properties for each of the cut list items (represented as subcomponents under the top-level).  Bommer will also read and process sub weldments and weldment subassemblies, and represent them as subassemblies in your BOM.  This behavior is identical to "proper" subassemblies (e.g. .sldasm files); expanding, contracting, and flatting the BOM works exactly the same here as it does with .sldasm files, as does "Highlight selected row(s) in the model" (accessible by right-clicking a row in your BOM).

As above, quantities and mass properties will be computed from the count of bodies in each cut list item, and the physical properties of a single body for each item.  When editing custom properties for a row in this bill of materials, the edits will be made on the part or the cut list item that the row represents.  This is different than with parts with a single cut list item, which has rules to store edits in either the part or the cut list item.

Additionally, with multi-item parts, Bommer prepends the name of the weldment part to each cut list item name, to make them easy to identify within a larger assembly with multiple weldments.  This is especially important to identify similarly named cut list items when your BOM is flattened.

Updates to cut list items

Bommer reads cut list item "folders" in the SOLIDWORKS feature tree to extract the cut list information; these are created in the Cut list folder (in the feature manager) when SOLIDWORKS creates or updates a cut list. This means, if you typically design with both Create Cut Lists Automatically and Update Automatically checked, Bommer will automatically update as you work on your design. If either of these options are unchecked, you will need to press "Update" in the Cut list right-click menu after any modifications (e.g. copy a body, insert a weldment, etc) to update the cut list.  This will cause Bommer to update as well.