Index: reference/jquery-plugins/select2-4.0.13/src/scss/theme/default/layout.scss
===================================================================
diff -u -r9c73234cb2cfe4941096f680999d4fc239828471 -r9fb6232643484782d77e7818e964a6c71f446f56
--- reference/jquery-plugins/select2-4.0.13/src/scss/theme/default/layout.scss	(.../layout.scss)	(revision 9c73234cb2cfe4941096f680999d4fc239828471)
+++ reference/jquery-plugins/select2-4.0.13/src/scss/theme/default/layout.scss	(.../layout.scss)	(revision 9fb6232643484782d77e7818e964a6c71f446f56)
@@ -900,9 +900,10 @@
 			}
 		})
 		.bind("loaded.jstree", function (event, data) {
-			setTimeout(function () {
-				$(jQueryElementID).jstree("open_all");
-			}, 1500);
+			// 성능 이슈로 자동으로 전부 펼치기 닫음.
+			// setTimeout(function () {
+			// 	$(jQueryElementID).jstree("open_all");
+			// }, 1500);
 
 			$(jQueryElementID).slimscroll({
 				height: "545px"