grid > columns > include

If present, only the included columns will be rendered. The behavior can be changed by specifying the attribute keepAllSourceColumns="true".

Examples:

Display only the id and sku columns:

<include>
    <column name="id"/>
    <column name="sku"/>
</include>

Display all available columns:

<include keepAllSourceColumns="true">
    <column name="id"/>
    <column name="sku"/>
</include>

Using keepAllSourceColumns="true" is useful for specifying additional properties for individual columns, or for moving only some columns to the left side of the grid.