From Object Designer, find the Sales Order page and click on Design:
This screen is the expanded view of Page Designer for the Sales Order page:
When we collapse it, you'll notice that it will be easier for us to see how it's laid out. The columns that you see are as follows:
Expanded: This shows whether the line is expanded or collapsed.
Type: This is the control type. There are four control types in NAV:
Container: This is basically a place in which all of the controls are contained.
Group: This is where we group the common data.
Field: A field on the table or a variable that you define.
Part: Typically used to show different pages such as FactBoxes, or a sales line.
SubType: Based on the information specified on the type, there will be a number of subtypes you can choose from.
For Container, you can choose from the following subtypes:
ContentArea: Usually at the start of a page, where you define the main contents of the information being displayed...