The star icon should appear as a gray outline when the preview container is moused over and the item is not bookmarked. Clicking the star would bookmark the item. Clicking the star again might remove the bookmark. Alternatively, you might be able to right click a star to edit or remove a bookmark.
The star icon should appear as a gray outline when the preview container is moused over and the item is not bookmarked. Clicking the star would bookmark the item. Clicking the star again might remove the bookmark. Alternatively, you might be able to right click a star to edit or remove a bookmark.