When you create a request, Request Modeler creates a menu in the specified workspace for you to access the form. The auto generated form gets launched from this menu through ct.modeler.launch API. You cannot launch the form created by you in the place of the auto generated form from this workspace menu. However, you can launch the self-designed form created by you with or without container by clicking a context menu or a button in an app, from a link or from a custom workspace menu.
The following pages explain the various ways to launch the form from a workspace menu as an example.