HELP!!! Macro buttons program? How would you build it?

[Mr. Mac Snoer]

Is this possible? Any hints on how to build this?

1.
The program should have a matrix of say 8 times 8 buttons.
If I as a user press the first button I want the keys "Hello World" to be typed.
If I as a user press the second button I want "Alt+G" to be pressed.
If I as a user press the 3rd button I want "Alt+G and then Shift+G" to be pressed... and so on.

2.
It would be cool if the user could customize the buttons by himself. If he could add and remove buttons as he wishes and so creates his own macro page.

[Mr. Mac Snoer]

Could anybody tell me if this is possible? Any hints?

[Mr. Mac Snoer]

I guess its not possible.

Is it to much to ask to have ASCII Keayboard and Mouse XY as external hardware support?