In the Properties window, global column properties, also known as C1DataColumn properties, are accessed through the C1DataColumnCollection object property. You can access the C1List Designer by clicking the ellipsis button (...) next to the Columns node in the Visual Studio Properties window. For more information, see Using the C1List Designer.

Each member of the SplitCollection in the Properties window also exposes a DisplayColumns property known as the C1DisplayColumnCollection object. These C1DisplayColumn properties are split-specific properties. You can access the C1DisplayColumn Collection Editor by clicking the ellipsis button next to the Splits node in the Properties window and then clicking the ellipsis button next to the DisplayColumns node in the Split Collection Editor. For more information, see Using the C1DisplayColumn Collection Editor.