| BLINK | Blink two or more windows in an image display |
| CURS | Change the shape of the (X windows only) cursor |
| CURVAL | Interactive display of image intensities and astronomical coordinates |
| PIXCOLOR | Set specified pixel values to a specified color |
| SIGRANGE | Find range of pixel values which contain 90% of the image values |
| TVBOX | Draw a box of specified size on the image display |
| TVCIRCLE | Draw a circle of specified radius on the image display |
| TVELLIPSE | Draw an ellipse of specified axes on the image display |
| TVLASER | Write an image to postscript file with annotation from a FITS header |
| TVLIST | Display intensity values surrounding the cursor position |
| UNZOOM_XY | Convert from window coordinates to image coordinates |
| ZOOM_XY | Convert from image coordinates to window coordinates |