user doc: Clarified that a conditional expression can refer to a field in a collection
@@ -28,7 +28,7 @@ endif::[]
The data mapper supports expressions that are similar to a Microsoft
Excel expressions, but does not support all Microsoft Excel expression
-syntax.
+syntax. A conditional expression can refer to an individual field or to a field that is in a collection.
You can define zero or one condition for each mapping.
