Adding a text file named "deja-dup-restore-missing.contract" to ~/.local/share/contracts containing the following:
[Contractor Entry]
Name=Restore Missing Files
Icon=deja-dup
Description=Use Deja-dup to restore files missing from this folder, from the last backup.
MimeType=inode/directory;
Exec=deja-dup --restore-missing %U
Gettext-Domain=deja-dup
Adding a text file named "deja-dup- restore- missing. contract" to ~/.local/ share/contracts containing the following:
[Contractor Entry] inode/directory ; Domain= deja-dup
Name=Restore Missing Files
Icon=deja-dup
Description=Use Deja-dup to restore files missing from this folder, from the last backup.
MimeType=
Exec=deja-dup --restore-missing %U
Gettext-
will result in a context menu entry as desired.