Here you can select the number of cards to be placed in a row for each of supported screen resolutions. Your current resolution is highlighted in this way.
The user is what you use to login. If you do this a lot, you might like to change your username to something else
than your email address. Also, you can update your contact details. However, you cannot update your email, since it is linked
to the product and producers that you created. Please talk to us if this needs to be changed.