To add a model profile go to the panel dedicated to “Users” in the dashboard:

Dashboard

Click assign and add the model email or the manager email (an alias of your current email works fine as long as it is not exactly the same address)

Once the account is created you will be able to switch to the model account via the same panel or via the avatar menu.

To do so you need to click your avatar in the top right corner and look for the managed profile, then click switch.

You will be able to switch back to the master account exactly the same way.

Once you are in the model account you can add materials by clicking the gallery and start new projects via the gallery of templates.