To do this, you must have already added web bookmark(s) to the KC profile.

You can add web bookmark(s) by navigating to Profile > Application & Content > Samsung Internet Browser Settings > Add web bookmarks.

Once a web bookmark has been added, navigate to Profile > Home & Lock screen > Device screen preview. Once you click on a "+" icon on the device screen grid, select "Bookmark" as the Type and you will then be able to add an icon for the bookmark.