So your Ledgible account is set up and you're looking to create an HD wallet! There are a couple of steps you'll need to follow but they are simple and we will walk through them together here.
1) Navigate to the wallets tab on your account
2) Click on the + symbol circle
3) Fill in the name you want for the wallet, click the HD Wallet radio button, and select the appropriate blockchain
Go ahead and click NEXT now. Once you've done that:
4.a) Enter a single xpub/ypub/zpub
4.b) Or enter multiple xpub/ypub/zpubs and specify the number of requires signatures
Once you've gotten either your single xpub/ypub/zpub entered or multiple of them go ahead and click the NEXT button.
5) Summary Screen
The above screen just gives you a summary and confirms you are ready to go ahead and create the wallet. Once you are done reviewing go ahead and click the create button!
6) Done! Your wallet has now been successfully created!