When customers log in to the app, they are immediately presented with a list of your available services. You have full control over how this list is displayed. It can be shown in either a one-column or two-column layout, depending on your preference.
To change the column layout, follow the path below:
Admin Center -> Settings -> Apps (tab) -> select Native apps
Service Column Setting
In the Customer Apps Config section under the Native apps tab, you can set the number of columns for the service list using the Service Column Count field. Only values of 1 or 2 are supported.
The image below shows how the layout appears for each column option:
