I want to add a selector for Cost Modifier in this grid just like the InventoryID. The data is from my custom DAC but I am not able to do so can anyone please help me here.

I want to add a selector for Cost Modifier in this grid just like the InventoryID. The data is from my custom DAC but I am not able to do so can anyone please help me here.
Hi
#region CostModifier
PXDBInt()]
PXUIField(DisplayName = "Cost Modifier")]
PXSelector(typeof(Search<CustomeDAC.IDField>), typeof(CustomeDAC.DescriptionField), DescriptionField = typeof(CustomeDAC.DescriptionField), CacheGlobal = true)]
public virtual int? CostModifier { get; set; }
public abstract class costModifier : BqlInt.Field<costModifier> { }
#endregion
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