Please find below the MACD divergence indicator converted to screener code: 

// DIVERGENCES ZeroLag MACD adapted from HK-LISSE RSI divergences code

//MACD periods
short = 12
long = 26
signal = 9
//-----------

EMAshort1 = exponentialaverage[short](close)
EMAshort2 = exponentialaverage[short](EMAshort1)
DifferenceShort = EMAshort1 - EMAshort2
ZeroLagShort = EMAshort1 + DifferenceShort

EMAlong1 = exponentialaverage[long](close)
EMAlong2 = exponentialaverage[long](EMAlong1)
DifferenceLong = EMAlong1 - EMAlong2
ZeroLagLong = EMAlong1 + DifferenceLong

ZeroLagMACD = ZeroLagShort - ZeroLagLong

signal1=ExponentialAverage[signal](ZEROLAGMACD)
signal2=ExponentialAverage[signal](signal1)
DIFFERENCE2=signal1-signal2

SignalMACD=signal1+DIFFERENCE2
x = ZeroLagMACD
y = SignalMACD

//  BEARISH DIVERGENCES MACD

hi=max(hi,x)
hico=max(hico,max(high,high[1]))

if x crosses under y then
sto2b=sto1b
sto1b=hi
hi=0
p3b=p1b
p2b=max(p1b,hico1)
p1b=max(highest[3](high),hico)
if p2b=p1b then
p2b=max(p3b,p4b)
endif
hico=0
hico1=0
endif
if x<y then
p4b=hico1
hico1=max(hico1,high)
endif
if p1b>p2b and sto1b<sto2b and x crosses under y and x<x[1] then
signB= 1
else
signB= 0
endif

// BULLISH MACD DIVERGENCES

lo=min(lo,x)
lowco=min(lowco,min(low,low[1]))

if x CROSSES OVER y  then
sto2h=sto1h
sto1h=lo
lo=100
p3h=p1h
p2h=min(p1h,lowco1)
p1h=min(lowest[3](low),lowco)
if p2h=p1h then
p2h=min(p3h,p4h)
endif
lowco=100000
lowco1=100000
endif
if x>y then
p4h=lowco1
lowco1=min(lowco1,low)
endif
if p1h<p2h and sto1h > sto2h and x crosses over y and x>x[1]  then
signH= 1
else
signH= 0
endif

////////////////////////////////////////////////
SCREENER [(signB or signH)]