When using Dynamic Scaffolding (def scaffold = true;), the Controller scaffolding template found in src/templates/scaffolding/Controller.groovy is not used. This template IS used when performing grails generate-controller. And the View templates in this folder ARE used with Dynamic Scaffolding. This prevents mass customization of Controllers through Dynamic Scaffolding. It also breaks the expectations of the user; one works and one doesn't. Attached an example project, where an attempt is made to add a 'Cancel' action and selection to scaffolded Controllers and Views. Files of note:

grails-app/controllers/SomeObjectController.groovy	Dynamic Scaffold Controller for SomeObject Domain Class
src/templates/scaffolding/Controller.groovy	Expected template for Dynamic Scaffold Controllers; added cancel action
src/templates/scaffolding/create.gsp	Added a Cancel button
src/templates/scaffolding/edit.gsp	Added a Cancel button

Running this project, both the Create and Edit views include the Cancel button added to the create.gsp and edit.gsp templates. But attempting to select either Cancel button results in the following Runtime Exception: org.codehaus.groovy.grails.web.servlet.mvc.exceptions.UnknownControllerException: No controller found for URI [/someObject/cancel]! The included test (grails test-app SomeObjectController) also fails. Both functionalities work if the Controller and Views are generated (grails generate-all SomeObject). This confirms that the cancel action added to the Controller template is not being included in the Dynamic Scaffolding, as expected.