Hi,
Sorry for the delay.
It is actually a quite common practice to put all store products on the main store page (landing page), when there is small amount of products in the store and no categorization is needed. In Ecwid, it’s easy to do that: a product without category assigned is displayed in the root category, which is the same as landing page in the storefront. So if you don’t have any category in your store, all your products will be displayed on the main store page (landing page). Thus, in order to show all your products on your landing page, you only need to not use any category at all – just make your products not assigned to any category or, alternatively, remove all of your categories.
To make the opposite (show only categories on the landing page), you will need to assign all your products to some categories, i.e. leave no unassigned product in your store.
See also: http://kb.ecwid.com/w/page/25129559/How%20to%20assign%20any%20product%20to%20one%20or%20more%20categories
Hope that helps.
