Killihu has released a new Max for Live device that lets you perform the duplicate action multiple times.
Simply enter a number in the dialog box and the CMD+D/CTRL+D action will be executed the specified number of times.
The button located on the device rack must be mapped to a keyboard shortcut, for example SHIFT+D. The plugin must be used through that mapping, not directly by clicking the button.
Duplicator is available as a “pay what you like” download, including free.
More information: Killihu