This is the mapping shown in my Youtube video including with the 4th bank BLANKS!!!! It's a mapping designed to work for a 2 Deck w/Sample Decks layout. It's even more powerful when used with a proper Controller such as the Traktor Kontrol S2 (my personal choice)

The banks are mapped to control:

1. Instant Gratification (Modded to control Hot Cue 1 and Pause/Play for the FOCUSED Deck plus Turning ON/OFF all 4 effects for Decks A & B on the top row buttons)

2. Samples (Row 1 Controls Sample Deck C. Row 2 Controls Muting of Sample Deck C Samples. Row 3&4 do the same but for Sample Deck D)

3. Mapped to give you Control over Hot Cues 1-4, Play/Pause, Tempo Bend FRW/BACK and TEMPO Sync of Decks A & B 

4. BLANK - This is a clean slate so for those who didn't like having the sample recorder, you can assign Loop In's & Out's or Instant Loops. Also ideas like Hot Cues 5-8. Whatever you desire!