Featured products and categories are for just that, featured -- not all, hence the limit.
If I understand you correctly, you want to link to various products within your store from your front-end website? What you can do is to create your own links to the products you want with as many of your products as you like by using either the HTML widget and adding your own code/links or the Gallery widget where you can add product images and link to the products below any images you display.
Does that help? 😉
"Today ends tonight and tomorrow starts again."