This represents years and years of DJing with the Stanton SCS.3D & SCS.3M in Virtual DJ 7.  This operates with the 4 deck native VDJ 7 skin.  Most buttons are blue with Decks 1/2, and red with Decks 3/4, although there are exceptions.
Requires both SCS3D and SCS3M mapping files by Ryan Tonini to work.

In VDJ7:
On startup, cycle each PFL button and the Deck button to set up variables for playing
Use two gains to control Headphone Volume and Headphone Mix (Left & Right Gains on SCS.3D).  Use PFL as usual for pre-listening to tracks.
Load the 2nd track, then use Beatlock to lock the song together without changing the currently playing song.
Cntl+B as well as "B" toggles BeatMatch
To fix the tick marks, right click BPM and -1/4 or +1/4 on Phase.  Also you can move the phase piece by piece.

Stanton Controls:
Mixer:
A_C Button on Top: Activate the search query (button not functional on my SCS.3M)
B_D Button on Top: Activate the search query
Blue/Red Buttons: Load Track onto Selected PFL track 1/A or 2/B blue, or 3/C or 4/D when red.
EQ Buttons: Reset EQs and Filter (VDJ Native) on Selected PFL track 1/A or 2/B when blue, or 3/C or 4/D when red.
FX Buttons: Que the Flanger on Selected PFL track 1/A or 2/B when blue, or 3/C or 4/D when red.
Master Button: Cycle thru the Center Crossfader Windows
Headphones: Cycle A/C and B/D tracks on PFL (blinking headphones determines what is sent to the headphones, not what is on the skin)
Top Effects Slider: Move P.1 Effects Knob
Bottom Effects Slider: Move P.2 Effects Knob

Deck:
Play: Play_Pause track (blinking on currently playing track), Stopped (Blue decks 1,2; Red decks 3,4).  Press and hold for 1000ms to Rewind Track to beginning
Cue: Blue Cue #1, Red Cue #2, Blinking Cue #3, B1, B2, B3, etc on Circular Vinyl in Trig Mode will save/activate each of the 8 cues.
Sync: Sync (will flash on the 1st beat of each musical bar)
Tap: Toggle Slow Pitch Reset (1.1% speed) (Shows blue if original BPM is set, red if the original song BPM is not set, Blinks if Beatlocker is set on the track)
In modes FX, EQ, & Vinyl, LEDs on Circular Vinyl will count the beats & bars.

In FX Mode(Audio) (Toggle Effects tab, and Turn on Effects Side Panel):
    TL Button: Activate Sound Effect
    TR Button: Deactivate Sound Effect
    BL Button: Negative Scroll Sound Effects
    BR Button: Positive Scroll Sound Effects
    B1-B4 Hot Select Effect Cut
    B5-B8 Hot Select Effect Flanged LoopOut
    S4 (Center) Drag the Audio Filter (VDJ Native) & Turn On Effects Side Panel
(other good effects are Backspin, Brake, Cutoff, TK Filter V2, LoopOut V2.01, Vocals+ (Vocals+ Skips)

In EQ Mode(Video) (Turn on Video Center Panel):
    TL Button: Activate Video Effect
    TR Button: Deactivate Video Effect
    BL Button: Negative Scroll Video Effects
    BR Button: Positive Scroll Video Effects
    B1-B4 Hot Select Video Effect Sonique
(other Good Effects are Boom, Camera, SBDJ Squares, Strobe, Text, VideoCube)

In LOOP Mode (Turn on Loop Side Panel):
    TL Button: Turn on Smart Loop
    TR Button: Turn off Smart Loop (Loop_Out)
    BL Button: If Not In Loop, Shorten Loop Length; If In Loop, Move Loop Left 50ms
    BR Button: If Not In Loop, Lengthen Loop Length; If In Loop, Move Loop Right 50ms
    B1 Activates Loop 0.25 (If In Loop, Changes Length or Exits Loop If Length Already 0.25)
    B2 Activates Loop 0.5 (If In Loop, Changes Length or Exits Loop If Length Already 0.5)
    B3 Activates Loop 1 (If In Loop, Changes Length or Exits Loop If Length Already 1)
    B4 Activates Loop 2 (If In Loop, Changes Length or Exits Loop If Length Already 2)
    B5 Activates Loop 4 (If In Loop, Changes Length or Exits Loop If Length Already 4)
    B6 Activates Loop 8 (If In Loop, Changes Length or Exits Loop If Length Already 8)
    B7 Activates Loop 16 (If In Loop, Changes Length or Exits Loop If Length Already 16)
    B8 Activates Loop 32 (If In Loop, Changes Length or Exits Loop If Length Already 32)
    S4 (Center) Drag the Audio Filter (VDJ Native) & Turn On Effects Side Panel

In TRIG Mode (Turn on Mixer Center Panel, turn on Browser Tab):
    TL Button: Folder Scroll Up
    TR Button: Folder Scroll Down
    BL Button: Song Scroll Up
    BR Button: Song Scroll Down
    B1 Sets Cue #1
    B2 Sets Cue #2
    B3 Sets Cue #3
    B4 Sets Cue #4
    B5 Sets Cue #5
    B6 Sets Cue #6
    B7 Sets Cue #7
    B8 Sets Cue #8
    S4 (Center) Deletes the last used Cue

In VINYL Mode (Turn on Scratch Center Panel):
    TL Button: Fast Forward 10sec
    TR Button: Fast Rewind 10sec
    BL Button: Slow Rewind 1sec
    BR Button: Slow Forward 1sec
    S4 (Center) Slow/Speed Up Song Short Duration
    S4 (Outer Edge) Slow/Speed Up Song Long Duration