To create an account model-based account, you need to enter a username (aka an account name) you want to use at OpenLedger DEX into the ‘Account Name’ field. Then create your password and paste it into the ‘Password’ field, then confirm your password and press 'Continue' button. 

After that confirmation message appears on the screen. Please, don't forget to save your password!

All steps you can view in this small guide.