I added some features to the Push more buttons mapping found at http://pushmorebuttons.com/downloads.

It's still not the most reliable so let me know if you see any bugs

Hold  SHIFT while pressing monitor Headphone buttons allows you to monitor Decks C & D respectively.
Hold SHIFT while pushing FX assign buttons assigns FX to Decks C & D respectively. 

Hold COG button while pressing the loops size encoder turns the key keylock on. and turning it adjusts the key.

Hold COG and press any of the hot cue buttons to get the following FX presets
    Left 1: Filter 92 LFO
    Left 2: Gater
    Left 3: Lofi
    Left 4: Beat Masher
    RIght 1:Delay
    RIght 2:Reverb
    RIght 3 Flanger
    Right 4: Beatmasher
(These are can are easily changed to the effect you want)

Hold COG while turning BROWSE encoder to browse move through you favourite folders at the top of the browser

Hold SHIFT while Turning BROWSE encoder to move through the file directory tree

Hold SHIFT + SNAP toggle through the Layout presets

Hold COG + FX buttons:
    Channel strip 1 - FX 1 assign: Deck C nudge Back
    Channel strip 1 - FX 2 assign: Deck C nudge Forward
    Channel strip 2 - FX 1 assign: Deck D nudge Back
Channel strip 3 - FX 2 assign: Deck D nudge Forward

I changed the SYNC and the REL/INT to be play pause by default
    Left REL/INT: Deck A play/pause 
    Right REL/INT: Deck B play/pause
    Left SYNC: Deck C play/pause
    Right SYNC: Deck D play/pause

To switch between relative and internal, hold SHIFT and the following
    Left REL/INT: Deck A
Right REL/INT: Deck B 
Left SYNC: Deck C 
Right SYNC: Deck D 

To manually set Master Tempo Hold COG while doing the following
    Left REL/INT: set Deck A as Tempo Master
Right REL/INT:set Deck B as Tempo Master 
Left SYNC: set Deck C as Tempo Master 
Right SYNC: set Deck D as Tempo Master 

I hope this is usefully to someone