In addition to supporting component properties, Bommer also allows you to define assembly-specific properties for components that we call Top Level scoped properties.  A Top Level scoped property is editable like any other property; you edit the property per component in the  "Edit bill of materials…”  command by editing the cell on that components row, or you edit it in the “Edit part info...” command after selecting a component.  The difference here is the values for these properties are stored in the assembly design's root component.  This means that these values are changeable without changing the revision of the individual parts, but also means that the values stored in these properties do not travel along with the part if it is referenced in another design.

Common use cases

Top Level scoped properties are commonly used for any metadata that is a) specific to a given design or project, and/or b) might change separate from a design revision of the part or assembly it's associated with.  Examples of this include project specific costing, project status (e.g. Designed, Drawn, Reviewed, Released), inventory counts, and other similar values.  Bommer's initial configuration ships with a Top Level scoped property called "Order Quantity", which is another common use case for this type of property: this field represents a project-specific quantity override for how many of an item we actually need to order (which could include spares and margin of error).  This property also demonstrates a common configuration for Top Level scoped properties: it is set up to use the Quantity property as a default value, which means that by default it will display a component's quantity, but can be overridden on a project-by-project basis.

Things to keep in mind

In order to store your edits to Top Level scoped properties, Bommer uses a globally unique component identifier which is only available after a Fusion design has been saved and sync'd to the Autodesk cloud.  As a result, Top Level scoped properties are only editable after a file has been saved and is at V1 or higher.  Under normal circumstances, this means that you must save the part and wait for it to upload.  If you work offline often, however, you will need to go online to upload the parts at least once in order to make use of these properties.