Grafix Pro (which is a simple mac paint clone) uses just CTRL+I codes to do its screen dumps, and works with the Grappler Plus.

You have to type CTRL+O CTRL+M to enter a carriage return into the text box.

ctrl+I GDERI ctrl+M will do double/emphasized/rotated/inverted

ESC while loading will allow you to choose keyboard/mouse/joystick/tablet.

[Linked Image from i.imgur.com]
[Linked Image from i.imgur.com]
[Linked Image from i.imgur.com]