Having you logged in the Nftify platform with your verified account and you are at this screen: 

Step 1: To create a new store, click Create New Store

Step 2: Enter your new store name, NFTify subdomain, and choose Cardano blockchain network, and click on Create Your Store to access your new Store Admin site

Step 3: At the Select Wallet Connection screen, select Nami Wallet

Step 4: Select at least one NFT category to generate a suitable store for you. Click on Let’s go to access your Store Admin site