The wiring is very simple.
I think the KE72 is for direct input only, but mine cn be wired direct or in a matrix similar to the way a keyboard is set up.
There are columns from A-L and then rows from M-X. You would wire a switch leg to a contact in the row, and then the other switch leg to a contact in one of the columns.
The included software allows keystroke assignments to each row & column where the two points intersect in the matrix. Make the same assignments in FS or FSUIPC and you're good to go.
Once you click on a spot you have a switch wired, the keyboard will pop up to assing the keystroke. After you have programmed your switches you then upload the configurastion to the board.
http://i63.photobucket.com/albums/h1...2/untitled.jpg