Not sure exactly when it was upgraded, but looks like it's at 9.4m7 now (Feb 2024) ...
%put &=SYSVLONG;
SYSVLONG=9.04.01M7P080620
So a bunch of the last features added to sgmap should work now:
https://blogs.sas.com/content/graphicallyspeaking/2020/09/25/new-sgmap-features-in-sas-9-4m7/
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