Add program to perform action group at node.

prog/nodeaction.ks

@@ -0,0 +1,17 @@
+// Perform some action (AG1) at the maneuver node.
+
+@lazyglobal off.
+
+set done to false.
+
+if not HASNODE {
+  print "Create a node to initiate NodeAction mode.".
+  wait until HASNODE.
+}
+
+when NEXTNODE:ETA < 1 then {
+  AG1.
+  set done to true.
+}
+
+wait until done.