If you often buy the same item, e.g. Lunch buffet, then you can save the item as a favorite item and then buy the item with just 2 clicks.
Favorite items are visible on the front page of the app under the My Favorites section. When you need to buy a favorite item, you simply click on the desired favorite and are then taken directly to the payment page.
Add favorite item
Open the shop with items and click on the item you want to add as a favourite.
Then press the heart - the heart is marked in blue when the item has been added as a favorite.