The FAQ of Medley Interlisp answers some basic questions on using the system such as whether clipboard support is available, how to get online help, large displays, and more.
FAQs
Is copy and paste available? In Medley, there are three main editors used commonly: TEdit (full WYSIWYG styled text editor) SEdit (structure editor for Lisp code, package aware) TTYIN (Type-in using keyboard) The original method for copy/paste is different from most modern systems: click with mouse the destination hold down the shift key, and, while holding, select the source (using left mouse button to select a point, right button or repeated left button to extend the selection) let up the shift key. The system will copy from the selected content and paste it in the destination. To do a cut/paste operation, hold down the control key as well as the shift key.