"This is an outstanding piece of software from Mark Hessling. This is very powerful and different from other unix editors. For IBM VM/CMS z/VM mainframers It helps to create a profile named ".therc" to configure it . I don't find the default to be very user friendly. Insufficient space to do it here but I'll attempt to put together a tutorial. To get started in Xedit mode enter the command: set compat xedit xedit xedit"