How to change the appearance of your WebApp
This drop-down lets you control how the categories and their constituent sale items will appear when a user views the app. There are 3 choices; Expanded, Not Expanded and Only one expanded at a time.
All categories will be listed with all their sale items visible. Users will still be able to click on the symbol to collapse a category and hide its sale items. Expanded categories look like this;
Conversely, this setting displays only the category names in the app, requiring the customer to choose to expand each category they wish to select from by clicking the icon. With this option set the app displays like this;
As its name suggests, this setting ensures that only one category is expanded at any time while using the app. Expanding a new category will automatically contract the previous one. You can see this in operation below.