W1:=C=HHV(C,20);
W2:=BARSLAST(W1);
W3:=IF(W2>0,REF(C,W2),REF(C,W2));
W4:=CROSS(C,REF(W3,1));
KK:W4 AND COUNT(W4,5)=1 AND V<REF(V,1),LINETHICK4;
W1:=C=HHV(C,20);
W2:=BARSLAST(W1);
W3:=IF(W2>0,REF(C,W2),REF(C,W2));
W4:=CROSS(C,REF(W3,1));
KK:W4 AND COUNT(W4,5)=1 AND V<REF(V,1),LINETHICK4;