Click 'Presentattion & Browsing' in the 'Online Family Tree' tab of the main menu:

Then click 'Data' in the left sidebar:

Or click ‘Presentattion & Browsing’ in the left sidebar of your family tree:

This will open a new page where you can build your family tree template:

Move you mouse over any icon in the left sidebar to preview section, then click the icon to confirm your selection:

Refresh or reload the page of your family tree to view changes: