Hi @shuhn1229
Here's an example, where my data source is named "colTest" and the column I'm transforming is named "Value". My new column is named "New":
AddColumns(colTest,"New",Right(ThisRecord.Value,Len(ThisRecord.Value) - 3))

To do this directly in your collection, you can try something like the following. colTest is my data source and colNewData is my transformed data:
ForAll(
colTest,
Collect(
colNewData,
{
NewValue: Right(Value, Len(Value) - 3)
}
)
)
