The RCA version was later sold to Sperry Univac (which later became Unisys), and was released for the VS/9 operating system.
Unlike editors such as Teco or Emacs, the program is always in text-entry mode, similar to today's word processors.
The command set of the editor includes the ability to create unattended programmable editing sessions through the use of test, comparison, branch and looping functions.
For example, to alter every "To" in a document to the word "From" you would type in or followed by the transmit key (equivalent to Enter on a PC), and the editor would perform the action.
Editing was basically full-screen, with actions not taking place until the user pressed the transmit key, a procedure very similar to today's practice of entering text into an input box in a web page, with no action being taken until the user clicks on the submit button.