Plotting weekly indicators on daily charts

The Metastock Tips and Tools site (http://www.metastocktips.co.nz/) has a range of multi-frame indicators.  These let you plot weekly indicators on a daily chart. 

I would love to be able to use some of these in bullcharts but have been unable to successfully port them to bullscript.  Ideally I would like to use these in some of my tradesim scans.

Below is one of the metastock scans that plots a weekly SMA on a daily chart.  I would really appreciate it if someone was able to convert this to bullscript.  If I had this as a starting point I might be able to convert some more of their scans.

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Multi-Frame D SMA
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"Multi-Frame D SMA" plots a weekly or higher periodicity SMA signal on any EOD
or higher periodicity chart with sufficient open data. A prerequisite is the
Equis Forum DLL, available on this site or from http://forum.equis.com/

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 {Multi-Frame D SMA}
 {Simple Moving Average}
 {Requires Equis Forum DLL}
 {Roy Larsen, 2008-2009}

 {User settings}
N:=Input("Multi-Frame D SMA, Periods",1,99,10);
J:=Input("Months per Frame, 0=Weekly",0,12,0);
J:=If(J<5 OR Mod(J,3)=0 AND (J<>9),Int(J),-1);
U:=Input("Price, 1=O 2=H 3=L 4=C 5=MP 6=WC 7=Typical",1,7,4);
Q:=Input("Mode, 0=Static 1=Dynamic 2=Delayed",0,2,1);
 {Update on last bar, new bar or new frame}

 {Timing signals}
{Day counter courtesy metastock@wabbit.com.au}
M:=Month();A:=Int((14-M)/12);D:=DayOfMonth();
Y:=Year();X:=Y+4800-A;B:=M+(12*A)-3;Z:=Cum(1);
M:=If(J=0,D+Int((2+153*B)/5)+(365*X)+Int(X/4)-
Int(X/100)+Int(X/400)-32045,{day counter}
(Y-ValueWhen(1,Z=1,Y))*12+M){month counter};
I:=If(J=0,Int(M/7),Int((M-1)/Max(1,J)));
I:=I<>ValueWhen(2,1,I);
G:=LastValue(J<0 OR Lowest(Sum(I>0,5))=5);
I:=ExtFml("Forum.Sum",I,1);M:=G OR I;
F:=G OR (M=0)*ExtFml("Forum.Sum",Ref(I,1),1);
A:=LastValue(Z-1)=Z;B:=LastValue(Z)=Z;
F:=F+B*(Q=0)*(J=0)*(DayOfWeek()=5);
J:=If(F,1,(Alert(F,2)=0)*M*2*(Z>1));
J:=If(A+LastValue(J)>2 OR B+(Q=1)=2,1,J);
J:=If(G,1,If(Q=2,M*2,J));

 {Frame prices}
Om:=ValueWhen(1,M OR Z=1,O);
Om:=ValueWhen(1,J,If(J=1,Om,ValueWhen(2-G,1,Om)));
Hm:=HighestSince(1,M OR Z=1,H);
Hm:=ValueWhen(1,J,If(J=1,Hm,ValueWhen(2-G,1,Hm)));
Lm:=LowestSince(1,M OR Z=1,L);
Lm:=ValueWhen(1,J,If(J=1,Lm,ValueWhen(2-G,1,Lm)));
K:=ValueWhen(1,J,If(J=1,C,ValueWhen(2-G,1,C)));
A:=(Hm+Lm)/2; B:=(Hm+Lm+K)/3; D:=(Hm+Lm+2*K)/4;
K:=If(U=1,Om,If(U=2,Hm,If(U=3,Lm,If(U=5,A,If(U=6,D,If(U=7,B,K))))));

 {Calculate/plot SMA}
J:=J>0; A:=Cum(J);
Z:=Z-ValueWhen(N+1,J,Z);
Z:=ExtFml("Forum.Sum",J*K,Z);
ValueWhen(1,J,Z)/Min(N,A);

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Thanks for the reply Rod.  Not sure how I missed this feature in the manual - very handy.

Is it possible to use this in a Scan?