Telerik Web Parts for SharePoint 2010 last build was R1 2023 SP2 and is discontinued since then.
The Telerik RadEditor SharePoint Web Part provides several file management dialogs. This article lists them and their tool names.
Some of these dialogs use the built-in SharePoint libraries and lists through a custom content provider that is in the Telerik Web Part code. Others rely on the built-in SharePoint dialogs:
Image Manager—by default uses a custom content provider. If you need to create your own ToolsFile, the tool name for it is ImageManager. You can use the original SharePoint dialog instead through the SPImageManager tool name.
Document Manager—uses the original SharePoint dialog through the SPLinkManager tool name.
Template Manager—uses the original SharePoint dialog for the reusable content list through the SPTemplateManager tool name.
Flash Manager—lets you insert flash files in the content area from a shared folder. The tool name is FlashManager. Uses a custom content provider.
Media Manager—lets you insert video files in the content area from a shared folder. The tool name is MediaManager. Uses a custom content provider.