Hi,
Uploading an SVG file directly via FTP will not automatically add it to the SP Page Builder Shape list.
At the moment, the Custom SVG option expects SVG code to be added manually. For Image Shapes, the custom SVG also needs to use a single <path> element.
I agree that having an option to upload/select an SVG file directly from the Media Manager would make this much easier and more user-friendly.
I’ll treat this as a feature suggestion for the development team to consider in a future update.
Thanks for the suggestion!
-Regards.