Next to each collectible type you can select one of these options: DON'T SHOW, SHOW COLLAPSED or SHOW EXPANDED.

DON'T SHOW - these types will not show on the casino pages
SHOW COLLAPSED - when you open a casino page and it has these items, this section will be collapsed (items not shown, press the expand button "+" to show them)
SHOW EXPANDED - when you open a casino page and it has these items, this section will be expanded (all items shown)