diff --git a/Configuration/Yaml/Forms/FinisherSetupBE.yaml b/Configuration/Yaml/Forms/FinisherSetupBE.yaml
index 8ee16689e5aede2e5512d3374acdfd6918efbe9c..502f1ca671900c95b46e7cce8bd2b0cad2bf8b81 100644
--- a/Configuration/Yaml/Forms/FinisherSetupBE.yaml
+++ b/Configuration/Yaml/Forms/FinisherSetupBE.yaml
@@ -92,8 +92,8 @@ TYPO3:
                           templateName: 'Inspector-TextEditor'
                           label: 'The name of the website user'
                           propertyPath: 'options.userName'
+                          enableFormelementSelectionButton: true
                           propertyValidators:
-                            10: 'NotEmpty'
                             20: 'FormElementIdentifierWithinCurlyBracesInclusive'
                         170:
                           identifier: 'replyTo'