[Greg McKaskle]

Absolutely, they are in fact called overlays. The default dashboard doesn't draw one, but it does contain a VI in the loop to clear any overlays, as that is usually the first step in putting your own in. The VIs are in the Vision Utilities section, second row, third column -- looks like a cross-hair.

They include lots of vector routines for lines and arcs and a bitmap one if you want something fancy like a logo.

Greg McKaskle