You can manually download the address book CSV file and import it on the Safe -Address book page.
You can also sync by injecting the data directly into your browser's local storage for the Safe website.
Open browser console window:
- Chrome/Brave -> "Cmd + Option + J" (on a Mac) or "Ctrl +Shift +J" (on Windows)
- Safari -> "Cmd + Option + C" (on a Mac)
- Firefox -> righ-click on page, select "Inspect", switch to "console" tab
Enter the text from the console input file.
There is also a private spreadsheet that tracks all of the multisig data. Please note, access to this document is only for members of the holograph.xyz organization.