Index: reference/jquery-plugins/select2-4.0.13/src/scss/theme/default/layout.scss
===================================================================
diff -u -r5fe69e578f107094e993c57e988e2c3f12f11a23 -r00f461a9311bb9f1723a0f0130d8c1be04495e75
--- reference/jquery-plugins/select2-4.0.13/src/scss/theme/default/layout.scss	(.../layout.scss)	(revision 5fe69e578f107094e993c57e988e2c3f12f11a23)
+++ reference/jquery-plugins/select2-4.0.13/src/scss/theme/default/layout.scss	(.../layout.scss)	(revision 00f461a9311bb9f1723a0f0130d8c1be04495e75)
@@ -757,6 +757,10 @@
 			setTimeout(function () {
 				$(jQueryElementID).jstree("open_all");
 			}, 1500);
+
+			$(jQueryElementID).slimscroll({
+				height: "335px"
+			});
 		});
 
 	$("#mmenu input, #mmenu button").click(function () {