En réponse à :
Cadre is a container for other components. From administration panel, just drag and drop a component in a Cadre and validate to change a Cadre content. Pages from Cat model contains differents Cadres with seperate configurations, to customize any page content.
Margins and orientation are customizable. A vertical Cadre is a customizable column, and an horizontal one is an customizable horizontal block.
Pages pane of ACS control panel show which Cadre is in which page : just click on the (…)