Choose the channel being displayed (Select the channel number from the menu).
Blink between two channels (The mouse y-coordinate determines the blink rate. It blinks between the current and succeeding image, mod 3. Hit any button to stop blinking).
Fiddle the lookup tables (The transfer function is governed by the mouse position. Hit any button to finish the command).
Change the lookup tables between black and white, or colour.
Zoom and pan (the left button zooms in, the middle button zooms out, and the mouse position controls pan. The cursor drawn on the IVAS gives the position, on the unzoomed screen, of the central pixel currently being displayed. To finish, hit the right button.).
Switch the menu off (by `selecting' the asterisk). This is useful if you want to take a photograph of the screen.
Return cursor position. The coordinates given are coordinates (not image coordinates).