It will be nice for users to be able to copy/paste files in the FileManager. There is a context menu with remove and rename functionality, it could be good to add to this context menu the ability to copy and paste certain files

Make columns in FileManager resizable in MVC-Wrapper.

Filename, Size and Date have the same width, but the columns for Size and Date do not need so much.

Currently, if we move files/folders from one folder to another, the FileManager sends two requests to the backend - Create and Destroy. The Create method is called to "create"  the files in their new destination and the Destroy method removes the files from their previous location. 

The two methods are executed independently and the results from each of them don't affect the result of the other. There are scenarios in which when we move files, the Create call can fail or be prevented because of limited user rights, but the Destroy method will be executed resulting in files' deletion. The same is applicable in scenarios where the Destroy is unsuccessful. 

It will be a very useful FileManager feature if there is a relation in the Create and Destroy methods' execution.

If you got to this demo https://demos.telerik.com/aspnet-mvc/filemanager and create a nested folder it is not possible to drag it to root level later on.

Please provide support for drag and drop functionality to root level.

I'd like to request the inclusion of source code for CRUD operations in the FileManagerDataController for MVC and Core. 

Thanks!