The copy mode type
This mode is used to create copies of entities. This is done independent of the clipboard which is set using pw::Application.setClipboard. This means that this command will not modify the contents of the clipboard when making copies.
To create a mode of this type, use the pw::Application.begin command with the mode Copy specified, like this:
set copier [pw::Application begin Copy $entities]
This action sets the given list of entities to be the contents of the application clipboard.
pw::Application setClipboard entity_list
This action begins a mode in the application.
pw::Application begin ?-mode_specific_flags? mode ?entities?