Index: source/blender/editors/space_view3d/view3d_header.c
===================================================================
--- source/blender/editors/space_view3d/view3d_header.c	(revision 44977)
+++ source/blender/editors/space_view3d/view3d_header.c	(working copy)
@@ -455,9 +455,9 @@
 
 		row= uiLayoutRow(layout, 1);
 		block= uiLayoutGetBlock(row);
-		uiDefIconButBitS(block, TOG, SCE_SELECT_VERTEX, B_SEL_VERT, ICON_VERTEXSEL, 0,0,UI_UNIT_X,UI_UNIT_Y, &em->selectmode, 1.0, 0.0, 0, 0, "Vertex select mode");
-		uiDefIconButBitS(block, TOG, SCE_SELECT_EDGE, B_SEL_EDGE, ICON_EDGESEL, 0,0,UI_UNIT_X,UI_UNIT_Y, &em->selectmode, 1.0, 0.0, 0, 0, "Edge select mode");
-		uiDefIconButBitS(block, TOG, SCE_SELECT_FACE, B_SEL_FACE, ICON_FACESEL, 0,0,UI_UNIT_X,UI_UNIT_Y, &em->selectmode, 1.0, 0.0, 0, 0, "Face select mode");
+		uiDefIconButBitS(block, TOG, SCE_SELECT_VERTEX, B_SEL_VERT, ICON_VERTEXSEL, 0,0,UI_UNIT_X,UI_UNIT_Y, &em->selectmode, 1.0, 0.0, 0, 0, "Vertex select - shift-click for multiple modes");
+		uiDefIconButBitS(block, TOG, SCE_SELECT_EDGE, B_SEL_EDGE, ICON_EDGESEL, 0,0,UI_UNIT_X,UI_UNIT_Y, &em->selectmode, 1.0, 0.0, 0, 0, "Edge select - shift-click for multiple modes");
+		uiDefIconButBitS(block, TOG, SCE_SELECT_FACE, B_SEL_FACE, ICON_FACESEL, 0,0,UI_UNIT_X,UI_UNIT_Y, &em->selectmode, 1.0, 0.0, 0, 0, "Face select - shift-click for multiple modes");
 	}
 }
 
@@ -538,11 +538,11 @@
 		block= uiLayoutGetBlock(row);
 		
 		if (v3d->twflag & V3D_USE_MANIPULATOR) {
-			but= uiDefIconButBitC(block, TOG, V3D_MANIP_TRANSLATE, B_MAN_TRANS, ICON_MAN_TRANS, 0,0,UI_UNIT_X,UI_UNIT_Y, &v3d->twtype, 1.0, 0.0, 0, 0, TIP_("Translate manipulator mode"));
+			but= uiDefIconButBitC(block, TOG, V3D_MANIP_TRANSLATE, B_MAN_TRANS, ICON_MAN_TRANS, 0,0,UI_UNIT_X,UI_UNIT_Y, &v3d->twtype, 1.0, 0.0, 0, 0, TIP_("Translate manipulator - shift-click for multiple modes"));
 			uiButClearFlag(but, UI_BUT_UNDO); /* skip undo on screen buttons */
-			but= uiDefIconButBitC(block, TOG, V3D_MANIP_ROTATE, B_MAN_ROT, ICON_MAN_ROT, 0,0,UI_UNIT_X,UI_UNIT_Y, &v3d->twtype, 1.0, 0.0, 0, 0, TIP_("Rotate manipulator mode"));
+			but= uiDefIconButBitC(block, TOG, V3D_MANIP_ROTATE, B_MAN_ROT, ICON_MAN_ROT, 0,0,UI_UNIT_X,UI_UNIT_Y, &v3d->twtype, 1.0, 0.0, 0, 0, TIP_("Rotate manipulator - shift-click for multiple modes"));
 			uiButClearFlag(but, UI_BUT_UNDO); /* skip undo on screen buttons */
-			but= uiDefIconButBitC(block, TOG, V3D_MANIP_SCALE, B_MAN_SCALE, ICON_MAN_SCALE, 0,0,UI_UNIT_X,UI_UNIT_Y, &v3d->twtype, 1.0, 0.0, 0, 0, TIP_("Scale manipulator mode"));
+			but= uiDefIconButBitC(block, TOG, V3D_MANIP_SCALE, B_MAN_SCALE, ICON_MAN_SCALE, 0,0,UI_UNIT_X,UI_UNIT_Y, &v3d->twtype, 1.0, 0.0, 0, 0, TIP_("Scale manipulator - shift-click for multiple modes"));
 			uiButClearFlag(but, UI_BUT_UNDO); /* skip undo on screen buttons */
 		}
 			
Index: source/blender/makesrna/intern/rna_scene.c
===================================================================
--- source/blender/makesrna/intern/rna_scene.c	(revision 44977)
+++ source/blender/makesrna/intern/rna_scene.c	(working copy)
@@ -4149,7 +4149,7 @@
 	RNA_def_property_boolean_sdna(prop, NULL, "lay", 1);
 	RNA_def_property_array(prop, 20);
 	RNA_def_property_boolean_funcs(prop, NULL, "rna_Scene_layer_set");
-	RNA_def_property_ui_text(prop, "Layers", "Layers visible when rendering the scene");
+	RNA_def_property_ui_text(prop, "Layers", "Visible layers - shift-click to select multiple layers");
 	RNA_def_property_update(prop, NC_SCENE|ND_LAYER, "rna_Scene_layer_update");
 
 	/* active layer */