Copywhiz allows you to create a copy of your files in all sub-folders under the destination folder. You may copy them under all sub-folders or all first level sub-folders.
If you have selected files in Copywhiz using the File Explorer (Windows Explorer), then go to the destination folder. Right-click inside the folder, choose Copywhiz → Paste Advanced to open the Copywhiz window and click on the 'Advanced Settings' button as shown in the picture below.
If you have Copywhiz's main window already open, then you can directly click on the 'Advanced Settings' button as shown in the picture below.
Now check the option 'Paste a copy to every sub-folder under the destination folder' and then choose between all sub-folders or all first level sub-folders.
Press the OK button and click on the 'Paste Now' button to finally paste the files and also create an additional copy in all or first level sub-folders. A sound plays indicating the successful completion of a file copy task.