I don't know of a built-in way to add extra things to the official legend in SAS/Graph GMap. I do what you're doing - annotate the extra stuff. Here's an example:   https://robslink.com/SAS/democd104/covid_uscounty_snapshots.sas   ... View more

You can use the annotate function='label' to do that (in sas/graph gplot).   I've cleaned up your code a bit, and then basically added one extra line in your annotate code:   data duration; length full_name $50; input full_name firstweekno lastweekno dur_weeks; datalines; SusieQueen 0 3 4 BillyJohnson 5 5 1 JonBonJovi 1 9 9 MaggieSimpson 2 8 7 EllisGrey 5 7 3 ; run; data anno; set duration; length function color $8 text $20; xsys='2'; ysys='2'; hsys='3'; when='a'; color='red'; function='move'; x=firstweekno; yc=full_name; output; function='draw'; x=lastweekno; yc=full_name; size=.001; output; function='symbol'; text='dot'; size=1; output; function='label'; position='2'; size=1.8; color='gray33'; text=trim(left(dur_weeks)); output; run; axis1 label=('Customer Duration of Participation') order= (0 to 32 by 1) minor=none offset=(2,2); axis2 label=('Customer Name') value=(justify=right) offset=(3,3); symbol1 i=none v=none color=gray h=8pt repeat=2; title1 'Time Line'; title 'Customer Duration of Participation'; proc gplot data=duration; plot full_name*firstweekno full_name*lastweekno / overlay anno=anno haxis=axis1 vaxis=axis2; run;     ... View more

The Proc SGplot Xaxis documentation has a section on the tickstyle= option. Are you talking about something other/different than that?   https://go.documentation.sas.com/doc/en/pgmsascdc/9.4_3.5/grstatproc/p07m2vpyq75fgan14m6g5pphnwlr.htm   ... View more

The key to using Proc Gproject with SGmap, is that you have to drop the lat/long variables (if the map dataset has lat/long, then SGmap will use those instead of the projected x/y). Here's a small example to demonstrate:   data mymap; set mapsgfk.us_states (where=(statecode not in ('AK' 'HI'))); run;   proc gproject data=mymap out=mymap latlong eastlong degrees project=gnomon; id statecode; run;   title "Without dropping lat/long, lat/long is used"; proc sgmap mapdata=mymap maprespdata=sashelp.us_data; choromap population_2010 / mapid=statecode; run;   title "If you drop lat/long, then projected x/y is used"; proc sgmap mapdata=mymap (drop=lat long) maprespdata=sashelp.us_data; choromap population_2010 / mapid=statecode; run;       ... View more