hello that is very simple "Physical" for Point Line etc are done for that these entities are more commonly known as groups this is well described in the doc example
Physical Point ("fixadm") = {5301:5304};
Physical Line ("fixvhaut") = {3026:3029};
Physical Line ("fixvlat") = {5020, 5028, 5032, 5037};
--
jean pierre aubry
33 6 88 67 07 95
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