I have been looking for these for a while...got the code, so I thought I'd share.

demarker:

Sum(If(H,>,Ref(H,-1),H-Ref(H,-1),0),13)/(Sum(If(H,>,Ref(H,-1),H-Ref(H,-1),0),13)+Sum(If(L,>=,Ref(L,-1),0,Ref(L,-1)-L),13))


sequential:

setup:=Sum(C<Ref(C,-4),9)=9;
CD:=HighestSince(1,Peak(1,setup,.001),(C<Ref(L,-2)) + PREV);
CD-ValueWhen(1,setup,CD)=13 AND Ref(CD-ValueWhen(1,setup,CD)=13,-1)<>1


Combo:

setup:=Sum(C<Ref(C,-4),9)=9;
CD:= C < Ref(C,-1) AND L<Ref(L,-1);
Ref(setup,-4) AND (Sum(cd,13)=13)