diff --git a/ui (gen4)/lib/widget/browse2.js b/ui (gen4)/lib/widget/browse2.js
index b3ca4eae..b447d81e 100755
--- a/ui (gen4)/lib/widget/browse2.js	
+++ b/ui (gen4)/lib/widget/browse2.js	
@@ -4494,6 +4494,12 @@ var HTMLBrowserPrototype = {
 
 	// Renderers (DOM)...
 	//
+	// XXX add a render mode where we replace specific element's .dom...
+	// 		...this could be done via:
+	// 			.renderUpdate(..) -- like .renderFinalize(..) but replaces nodes...
+	// 		needs more thought...
+	//
+	//
 	// Prepare context for maintaining scroll offset...
 	//
 	// XXX need a counterpart to this to finalize the context on any render...