In order for Bommer to be able to track and apply changes to linked components, we must add a small bit of metadata to the linked document. Bommer will take care of adding this metadata automatically if it is running when your designs are saved; for designs created before you started using Bommer, or designs imported from other users who may not use Bommer, you can manually set up the document by looking for the "Setup for linked editing" command in the Bommer pane, or the icon in either the Edit bill of materials table or Edit part properties form. In all cases, a new revision will be created for the linked document, and the reference in your assembly must be updated before you can proceed with editing the bill of materials for that component (or any subcomponents that live within that document).
Editing linked design names
Bommer typically allows you to edit a component's name by changing the Part Name value for that row in the bill of materials table. Unfortunately, Bommer cannot change the names of designs in the same way, which is what is used as the name of the top-level component of a referenced part or subassembly. In these cases, the names will be read-only in the table with a hover-over/tooltip instructing you to use the A360 data panel to make the change. This applies to the root component of any design but is especially impactful in designs with a lot of linked components.
Editing Fusion properties
Editing an older reference version
Bommer supports this use case by letting you make changes that are only visible in the context of the editing assembly. This is done automatically when you edit data on an out-of-date reference; just use the standard Bommer editing tools and the system will take care of marking them as internal.
Updating Fusion 360 reference versions
After pushing edits, Bommer will always attempt to update a linked component to the new reference version. If this does not succeed, you can manually update the reference in Fusion by clicking the Get All Latest button at the top of Fusion 360, or right-clicking on the component and clicking Get Latest.