Es gibt in der Gruppe Headers des Themes Mobirise (default) insgesamt 3 unterschiedliche Blöcke.
FULL-SCREEN HEADER
Click any text to edit or style it. Click blue "Gear" icon in the top right corner to hide/show buttons, text, title and change the block background. Click red "+" in the bottom right corner to add a new block. Use the top left menu to create new pages, sites and add extensions.