In your Miiduu store, you can fully control the products that are listed on your homepage.

Step 1)

Go to Catalog->Products->Product Info->Advanced Options->Featured->Check 'Yes'. You can also decide the sort order of the featured products (Products with the lowest numbers appear first).

Step 2) 

Go to Design->Theme->Layout->Homepage->Drag & Drop the 'Home Featured' block to the 'Body' Section and remove the 'New Arrivals' block.

Then your customers can view your featured products on your store's homepage.