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Several options in LEXT make use of an interactive cursor. Due to the number of options available during some of these sessions, it may be better to use the device IKON_VT, which responds directly to keyboard buttons, in preference to IKON. (The latter requires the cursor button is depressed, then a keyboard character is typed to decide on the subsequent action to be followed.)
If the image is to be displayed on a X-windows VAXstation, then DEVICE XWINDOWS also allows direct use of the keyboard. Subsequent X-windows are called XWINDOWS2 etc.