Is there a way to show the missing value color in a continuos legend?

[Bryan]

data Shape;
;
infile datalines delimiter='09'x dsd firstobs=1;
input Obs Otln id x y vrRng;
datalines;
1 1 1 0 0 10
2 1 1 20 0 10
3 1 1 20 30 10
4 1 1 0 30 10
5 1 1 0 0 10
6 1 2 30 0 5
7 1 2 50 0 5
8 1 2 40 30 5
9 1 2 30 0 5
10 1 3 60 0 15
11 1 3 80 5 15
12 1 3 80 15 15
13 1 3 70 30 15
14 1 3 60 30 15
15 1 3 60 0 15
16 1 4 30 40 25
17 1 4 50 40 25
18 1 4 40 70 25
19 1 4 30 40 25
20 1 5 0 50 10
21 1 5 20 50 10
22 1 5 20 80 10
23 1 5 0 80 10
24 1 5 0 50 10
25 1 3 60 50 .
26 1 3 80 55 .
27 1 3 80 65 .
28 1 3 70 80 .
29 1 3 60 80 .
30 1 3 60 50 .
;
Run;

proc template;
define statgraph Map01t;
begingraph / drawspace=datavalue;
* entrytitle "";
rangeattrmap name="densityrange" ;
range MISSING / rangecolor=gray ;
range MIN - MAX / rangecolormodel=(red orange yellow) ;
endrangeattrmap ;
rangeattrvar attrvar=rangevar var=vrRng attrmap="densityrange";
layout overlayequated / equatetype=equate border=false
xaxisopts=(label=" " display=none)
yaxisopts=(label=" " display=none)
;
polygonplot x=X y=Y id=id / display=(fill)
COLORRESPONSE=rangevar
name="Shape"
;
polygonplot x=X y=Y id=id / display=(outline) OUTLINEATTRS=(color=black) group=Otln;
continuouslegend "Shape" / orient=vertical
location=outside valign=center halign=right
valuecounthint=10 title="Shape";
endlayout;
* entryfootnote halign=left "";
endgraph;
end;
run;
proc sgrender data=Shape template=Map01t;
run;

[Jay54]

It would be better (and more flexible) if you define your own LEGENDENTRY using a color swatch of the missing color with the label "Missing" and add it to a DISCRETELEGEND.