Greetinigs

i'm trying to discern some information.
while surfing on youtube I stumbled across a video of a technique
for transposimg advanced Jazz chords into different keys without having had to play the chord before in that key. called by the author as "Picture Chords".
It uses the concept of surrounding the note of the key you want the chord in. with certain intervals to the left and to the right of the object key note.
He sells a coures of many concepts but one small section on a DVD
touching the subject for $60.00. So i've been searching the web trying to nail down this technique because it would greatly enhance me and my sons playing.
So if anyone has any tips or can steer us in the write direction it wpuld be greatly appreciated.
P.S. you guys always come through somehow anyway