If you haven't opened an account with Saxo, you can find all the information about margin lending and open a margin lending account here.
Please ensure to go through the FAQ at the bottom.
If you already have an account with Saxo,
•On SaxoTraderGO: You can request Margin Lending on your account via the trading platform. Simply go to Menu/My profile > Your account > Margin lending and opt in.
•On SaxoInvestor: You can request Margin Lending on your account by clicking the “Request margin lending on my account” banner on the main Markets page on the platform.