DNETSingleFileSelector.cmp DNETSingleFileLibrary.cmp DNETSingleFileDetails.cmp DNETSingleFileController.cls DNETSingleFileManagerEvent DNETSingleFilePathChangeEvent OCMSDNETSingleFileAPP ocms_DNETSingleFileDownload content template and type of DNETSingleFileDownload once u create the content template, you should edit the content layout record and update controller class, like here https://doosan-nao--devpro1.sandbox.lightning.force.com/lightning/r/cms__Content_Layout__c/a2u8G000000XaxHQAS/view see the controller field. Components for Reference: OCMSDNETSingleFileAPP DNETSingleFileSelector.cmp DNETSingleFileController.cls Ocms_DNETSingleFileDownload.vf Ocms_DNETSingleFileDownload.cls c__ocms_DNETSingleFileDownload