Runtime 2020.4 Builder 7.8.0  With action copy you can copy a file in one action. Copy supports copying huge files because it does not load the complete file into memory.

Parameters of Action "copy"

Defining a "copy" Action

To copy a file with the file system adapter, you need to define a copy action on an action having the stereotype <<FileSystemAdapter>>. You can do this manually or with the help of the xUML Action Wizard (see context menu of the action node).