Step 1: Open SubWallet and click on the list item in the upper left corner to get to the Settings section.

Step 2: In the Settings section, choose Manage address book.

Step 3: To add a new contact, click the + button in the upper right corner.

Step 4: Enter contact details and click Add contact.

Your only necessary input is the address. You can name the contact according to your own will.

An example of a complete input would be as follows. After entering the contact address and contact name, click Add contact to proceed.

Step 5: Your contact has been saved to the address book!

This contact would be instantly available for you when making the transfer of tokens or NFTs.

You can also edit contact details or delete contact if you so wish, by clicking on the pencil icon next to the contact.

The following screen would appear and you might proceed with the action.