I'm not sure this forum is the best place any more to place a question. I think Discord my be frequented more often by the volunteers.
As to your question. I looked at the lst files for the Scabbard of Many Blades in the Advanced Class Guide and the Efficient Quiver in Ultimate Equipment. From what I can see, there is no code written for the Scabbard of Many Blades, just a brief description and note. The Efficient Quiver has a complete code and description write-up. It's easy to edit the lst files. I use Notepad++ suggested on these forums years ago. If no one provides the exact code, use the line for the Efficient Quiver as a guide and have a go at it yourself.
As one suggestion before editing, I always copy the line I'm about to edit and then comment out the original making changes only to the copy. This way I can go back and see what was originally there.